Dr. William Boothe talks about Lasik Eye Surgery and eye problems

Dr Boothe
Glare: scatter from bright light that decreases vision.
Haze: corneal clouding that causes the sensation of looking through smoke or fog.( - Dr William Boothe)

Dr Boothe: Optometrist: a primary eye care provider who diagnoses, manages, and treats disorders of the visual system and eye diseases.

Farsightedness: the common term for hyperopia.

Dr William Boothe

Refraction: a test to determine the refractive power of the eye; also, the bending of light as it passes from one medium into another. ( Dr Boothe )

More related links to Dr Boothe:
Dr William Boothe Dr William Boothe Dr Boothe

Keratoconus a disorder characterized by an irregular corneal surface (cone-shaped) resulting in blurred and distorted images.

FDA: the abbreviation for the Food and Drug Administration. It is the United States governmental agency responsible for the evaluation and approval of medical devices.( )
: Radial Keratotomy: commonly referred to as RK; a surgical procedure designed to correct myopia (nearsightedness) by flattening the cornea using radial cuts.
: Dry Eye Syndrome: a common condition that occurs when the eyes do not produce enough tears to keep the eye moist and comfortable. Common symptoms of dry eye include pain, stinging, burning, scratchiness, and intermittent blurring of vision.

Dr. William Boothe - Texas Lasik and Eyecare

Dr William Boothe
Accommodation: the ability of the eye to change its focus from distant objects to near objects.
Laser: the acronym for light amplification by stimulated emission of radiation. A laser is an instrument that produces a powerful beam of light that can vaporize tissue.( - Dr Boothe)

Dr Boothe: Ablation zone: the area of tissue that is removed during laser surgery.

Presbyopia: the inability to maintain a clear image (focus) as objects are moved closer. Presbyopia is due to reduced elasticity of the lens with increasing age.

Dr William Boothe

Endothelium: the inner layer of cells on the inside surface of the cornea. ( Dr William Boothe )

More related links to Dr William Boothe:
Dr Boothe Dr Boothe Dr William Boothe

Keratotomy: a surgical incision (cut) of the cornea.

Dr William Boothe

Laser Keratome: a laser device used to create a corneal flap( Dr Boothe )
Dr William Boothe: Farsightedness: the common term for hyperopia.
Dr Boothe: Haze: corneal clouding that causes the sensation of looking through smoke or fog.

Dr. William Boothe - Texas Lasik and Eyecare

Dr William Boothe
Ablate: in surgery, is to remove.
Monovision: the purposeful adjustment of one eye for near vision and the other eye fordistance vision.( - Dr Boothe)

Dr William Boothe: Pupil: a hole in the center of the iris that changes size in response to changes in lighting. It gets larger in dim lighting conditions and gets smaller in brighter lighting conditions.

Optician: an expert in the art and science of making and fitting glasses and may also dispense contact lenses.

Dr Boothe

Keratotomy: a surgical incision (cut) of the cornea. ( Dr Boothe )

More related links to Dr Boothe:
Dr William Boothe Dr Boothe Dr William Boothe

Laser Keratome: a laser device used to create a corneal flap

Dr Boothe

Refractive Power: the ability of an object, such as the eye, to bend light as light passes through it.( Dr William Boothe )
Dr Boothe: Snellen Visual Acuity Chart: one of many charts used to measure vision.
Dr William Boothe: Radial Keratotomy: commonly referred to as RK; a surgical procedure designed to correct myopia (nearsightedness) by flattening the cornea using radial cuts.

Dr William Boothe

Dr William Boothe

Ablate: in surgery, is to remove.
Refractive Errors: imperfections in the focusing power of the eye, for example, hyperopia, myopia, and astigmatism.( - Dr Boothe)

Dr William Boothe: Informed Consent Form a document disclosing the risks, benefits, and alternatives to a procedure.

Epithelium: the outermost layer of cells of the cornea and the eye's first defense against infection.

Dr Boothe

Keratitis: inflammation of the cornea. ( Dr William Boothe )

More related links to Dr William Boothe:
Dr Boothe Dr Boothe Dr William Boothe

Wavefront: a measure of the total refractive errors of the eye, including nearsightedness, farsightedness, astigmatism, and other refractive errors that cannot be corrected with glasses or contacts.

Dr William Boothe

Nearsightedness: the common term for myopia.( Dr Boothe )
Dr Boothe: Kerato: prefix indicating relationship to the cornea.
Dr William Boothe: Laser Keratome: a laser device used to create a corneal flap

Dr. Boothe lasik eye surgery article

Dr Boothe
Inflammation: the body's reaction to trauma, infection, or a foreign substance, often associated with pain, heat, redness, swelling, and/or loss of function.
Myopia: the inability to see distant objects as clearly as near objects.( - Dr William Boothe)

Dr William Boothe: Dry Eye Syndrome: a common condition that occurs when the eyes do not produce enough tears to keep the eye moist and comfortable. Common symptoms of dry eye include pain, stinging, burning, scratchiness, and intermittent blurring of vision.

LASIK: the acronym for laser assisted in situ keratomileusis which refers to creating a flap in the cornea with a microkeratome and using a laser to reshape the underlying cornea.

Dr Boothe

Ghost Image: a fainter second image of the object you are viewing. ( Dr William Boothe )

More related links to Dr William Boothe:
Dr Boothe Dr William Boothe Dr Boothe

Ablate: in surgery, is to remove.

Dr William Boothe

Sclera: the tough, white, outer layer (coat) of the eyeball that, along with the cornea, protects the eyeball.( Dr Boothe )
Dr Boothe: Lens: a part of the eye that provides some focusing power. The lens is able to change shape allowing the eye to focus at different distances.
Dr William Boothe: Cornea: the clear, front part of the eye. The cornea is the first part of the eye that bends (or refracts) the light and provides most of the focusing power.

Dr Boothe eyecare and laser surgery article

Dr Boothe

Lens: a part of the eye that provides some focusing power. The lens is able to change shape allowing the eye to focus at different distances.
Haze: corneal clouding that causes the sensation of looking through smoke or fog.( - Dr William Boothe)

Dr Boothe: Keratomileusis: carving of the cornea to reshape it.

Ablation zone: the area of tissue that is removed during laser surgery.

Dr William Boothe

Kerato: prefix indicating relationship to the cornea. ( Dr William Boothe )

Undercorrection: a complication of refractive surgery where the achieved amount of correction is less than desired.

Dr William Boothe

Diopter: the measurement of refractive error. A negative diopter value signifies an eye with myopia and positive diopter value signifies an eye with hyperopia.( Dr Boothe )
Dr Boothe: Refraction: a test to determine the refractive power of the eye; also, the bending of light as it passes from one medium into another.
Dr William Boothe: Laser Keratome: a laser device used to create a corneal flap

Doctor William Boothe Blog

Dr Boothe Lasik
Rheopheresis The RHEO Procedure ("rheopheresis") is a method of blood filtration (apheresis) for treatment of dry age-related macular degeneration that removes large proteins and fatty components from the blood to improve circulation to macular cells at the back of the eye. For more information, please see our article on age-related macular degeneration.
Parinaud dorsal midbrain syndrome Inability to look up, typically associated with a brain lesion, characterized by nystagmus and pupil unresponsiveness to light. Causes include hydrocephalus ("water on the brain") and tumors of the pineal gland.( - Dr Boothe Texas)

Dr William Boothe Texas: Trauma: Any injury , whether physically or emotionally inflicted. "Trauma" has both a medical and a psychiatric definition. Medically, "trauma" refers to a serious or critical bodily injury, wound, or shock . This definition is often associated with trauma medicine practiced in emergency rooms and represents a popular view of the term. In psychiatry , "trauma" has assumed a different meaning and refers to an experience that is emotionally painful, distressful, or shocking, which often results in lasting mental and physical effects.

Ocular herpes Recurrent viral infection that can cause inflammation and scarring of the cornea. It is not sexually transmitted. There are various types of ocular herpes, ranging from herpes keratitis to more serious forms that can lead to blindness. See our eye herpes article for more details.

Dr William Boothe Eye Surgery

Ophthalmic: Pertaining to the eye. An ophthalmic ointment is designed for the eye. ( Dr Boothe Dallas )

* Asymmetry: one half does not match the other.
* Border: irregular or scalloped.
* Color: varies in shade or color.
* Diameter: larger than that of a pencil eraser.

Dr Boothe Answers Blog

Cranial nerve One of the 12 pairs of nerves that go from the brain to other parts of the head. Those that affect the eyes and vision are the second cranial nerve (optic nerve), third (oculomotor), fourth (troclear), sixth (abducens) and seventh (facial). The optic nerve carries stimuli from the rods and cones to the brain. The third, fourth and sixth cranial nerves work with the eye muscles to control eye movement. The seventh cranial nerve works with the facial muscles to control facial movement (specifically the closure of the eyelids).( Dr Boothe Cataract Surgery )
Dr Boothe Center: Rod A photosensitive receptor in the retina that helps you to see in low light.
Dr Boothe Blog: Nystagmus Rapid and involuntary eye movement that is oscillating and non-chaotic. Blurred vision may result. Nystagmus typically affects infants and has a variety of causes.

Related links:
Dr Boothe Briliant Doctor | Dr Boothe Before Lasik Article | Dr Boothe Best Surgeon | Dr Boothe Best Eye Surgeon

Texas - Dr Boothe Article

Dr William Boothe Tx
Trachoma Chronic infection of the eyelid and cornea caused by a micro-organism that is spread by contact with eye discharge from an infected sufferer. Flies can also transmit the bacteria. Over time, the eyelid becomes scarred and turns inward. The eyelashes begin to scrape the eyeball and cornea, which eventually causes visual impairment and blindness. Worldwide, 84 million people are affected by trachoma. Clean water and good hygiene can prevent trachoma, while antibiotics can treat it early on. Inward-turning eyelids can be corrected with simple surgery performed by a nurse. (Information supplied by ORBIS International.)
Lacrimal: Pertaining to tears, as in lacrimal gland (tear gland). From the Indo-European dakru meaning a tear (from a weeping eye) which gave rise to the Greek dakry and the Latin lacrima.( - Dr Boothe Eye Surgery)

Dr Boothe Eye Care: Macula Part of the eye near the middle of the retina; the macula allows us to see objects with great detail.

Vitamin A: Vitamin A is retinol. Carotene compounds (found, for example, in egg yolk, butter and cream) are gradually converted by the body to vitamin A (retinol). A form of vitamin A called retinal is responsible for transmitting light sensation in the retina of the eye

Dr William Boothe Lasik

Corneal opacity A cloudy spot in the cornea, which is normally transparent. Causes include corneal scar tissue and infection. Symptoms include halos around lights, photophobia, vision loss and a white or cloudy spot on the eye. ( Dr Boothe Lasik )

Metamorphopsia Vision problem in which objects appear distorted. For example, straight lines may appear to be wavy, curved or bent, objects may appear to be larger or smaller than they actually are, or closer or farther away than they actually are. Metamorphopsia is typically caused by conditions or diseases that affect the eye's macula and retina.

Dr. Boothe Dallas

Eyelid: The lid or cover of the eye, a movable fold of skin and muscle that can be closed over the eyeball or opened at will. Each eye has an upper and a lower lid. An eyelid is also called a palpebra.( Boothe Eye Care & Laser Surgery )
Dr. William Boothe Texas: Diplopia Also called double vision. When two images of the same object are perceived by one or both eyes. Read our article on double vision and also review eye symptoms for a list of conditions that can cause double vision.
Dr. Boothe Eye Care: Keratoplasty Any of several types of corneal surgery, such as shrinking the collagen to reduce farsightedness or transplanting a new cornea to treat keratoconus.

Dr William Boothe Dallas

dr william boothe texas

Scaling: Abnormal shedding or accumulation of an upper layer of skin (the stratum corneum ).
Central island Refractive surgery complication in which the laser leaves an "island" of corneal tissue in the concave ablation zone. Symptoms include double vision and distortion. Read more about potential complications of LASIK and other kinds of refractive surgery.( - dr william boothe dallas)

dr william boothe dallas: Myelin A sheath made of proteins that covers nerve fibers. Myelin is essential to transmission of nerve impulses carrying information to and from various parts of the body. When myelin is destroyed or damaged in the optic nerve, the result is optic neuritis, with vision loss or distortions.

Pain: An unpleasant sensation that can range from mild, localized discomfort to agony. Pain has both physical and emotional components. The physical part of pain results from nerve stimulation. Pain may be contained to a discrete area, as in an injury, or it can be more diffuse, as in disorders like fibromyalgia . Pain is mediated by specific nerve fibers that carry the pain impulses to the brain where their conscious appreciation may be modified by many factors.

dr boothe laser center

Higher-order aberration Irregularity of the eye other than a refractive error (myopia, hyperopia or astigmatism). Higher-order aberrations sometimes affect your vision (such as decreasing contrast sensitivity), and sometimes do not. For more information, please see our higher-order aberration article. ( dr boothe tx )

Fixation In terms of vision, the eye's ability to maintain gaze upon an object.

Dr. William Boothe Eye Surgery

Wear schedule How long you wear your contact lenses: either daily wear (you remove the lenses each night) or extended wear (you may sleep with them in). It's important to differentiate between wear schedule and replacement schedule — that is, how often you discard and replace your lenses.( Dr. Boothe Dallas )
Dr. William Boothe Lasik: Rod A photosensitive receptor in the retina that helps you to see in low light.
Dr. Boothe Eye Surgery: Keratitis Inflammation of the cornea, caused by an infection or inflammatory process. Symptoms include eye pain or discomfort, light sensitivity, foreign body sensation, grittiness and tearing.

Dr William Boothe Dallas

Dr. Boothe Eye Care
Bifocal Lens with one segment for near vision and one segment for far vision. The term can apply to both eyeglass lenses and contact lenses.
Color blindness Partial or total inability to distinguish specific colors. Color blindness is inherited, and is much more common in men than in women.( - Dr. Boothe)

Boothe Eye Care & Laser Surgery: Descemet's membrane Corneal layer between the stroma and the endothelium.

Placebo A "false" but harmless treatment that has no proven medical value. Placebos usually are incorporated into clinical trials to measure how patients respond to an authentic therapy that is being tested. Some patients are given placebos, and others are given the actual therapy, to provide objective comparisons and assessments.

Dr. Boothe Eye Surgery

Melanosis Condition characterized by melanin (pigment) deposits in the skin or eyes. ( Dr. William Boothe Eye Surgery )

Botulism Serious illness from a toxin produced by Clostridium bacteria (usually Clostridium botulinum). Infant botulism and food-borne botulism are the most common forms in the United States. Symptoms include double vision, blurred vision, ptosis, muscle weakness, difficulty speaking, difficulty swallowing, difficulty breathing and nausea.

Dr. William Boothe Laser Center

Atropine: A drug obtained from belladonna that is administered via injection, eye drops, or in oral form to relax muscles by inhibiting nerve responses. Used to dilate the pupils and as an antispasmodic .( Dr. William Boothe TX )
Dr. Boothe TX: ANSI The American National Standards Institute is a private, non-profit organization that coordinates efforts to develop standards for manufacturing many different products, including eyeglass lenses. For example, certain ANSI standards define acceptable levels of impact resistance for safety eyewear.
Dr. Boothe: Optic nerve head Also called optic disk. Circular area where the optic nerve enters the retina, and the location of the eye's blind spot.

Dr William Boothe Dallas - Eye Care Article

Dr. Boothe Texas

Phoropter Device that provides various combinations of lenses used for tests of vision errors in eye examinations.
OD Abbreviation for "oculus dexter," the Latin term for "right eye." Or, doctor of optometry.( - Dr. Boothe Eye Care)

Dr. William Boothe TX: Bulbar conjunctiva: That part of the conjunctiva, a clear membrane of the eye, which covers the outer surface of the eye.

Astigmatism Condition in which the cornea's curvature is asymmetrical (the eye is shaped like a football or egg instead of a baseball); light rays are focused at two points on the retina rather than one, resulting in blurred vision. Additional symptoms include distorted vision, eyestrain, shadows on letters, squinting and double vision. Read more about astigmatism.

Boothe Eye Care

Pterygium Triangular fold of tissue on the white of the eye that can eventually grow over part of the cornea; the cause may be irritation from sun (i.e., UV rays), dust and wind. Some people have no symptoms, while others may have redness or blurred vision. Pterygia that are chronically inflamed can become itchy. Read more about pterygium and pinguecula. ( Dr. William Boothe Laser Center )

Retinitis Inflammation of the retina. Symptoms include blurred vision, metamorphopsia, floaters and vision loss.

Boothe Eye Care

Dry eye: A deficiency of tears. The main symptom is usually a scratchy or sandy feeling as if something is in the eye. Other symptoms may include stinging or burning of the eye; episodes of excess tearing that follow periods of very dry sensation; a stringy discharge from the eye; and pain and redness of the eye. Sometimes people with dry eye experience heaviness of the eyelids or blurred, changing, or decreased vision, although loss of vision is uncommon.( Dr. William Boothe Eye Care )
Dr. William Boothe Lasik: Aura A sensation experienced before an attack of epileptic seizure, migraine or other disorder. Examples are flashes of light, colored lights, numbness, coldness and even hearing voices.
Boothe Eye Care & Laser Surgery: Porphyria Disorder in which the body produces too much of a compound called porphyrin and releases it in the urine, causing a reddish color. Other symptoms include light sensitivity, skin that swells or is sensitive to sunlight, abdominal pain, blisters and muscle weakness.

Dr. William Boothe - Conjunctivitis Inflammation

Protein Large, complex organic molecules found in all living cells. These molecules contain enzymes, antibodies, hormones and other elements that help organisms function. Proteins are present in human tears and can collect on contact lenses, resulting in discomfort and cloudy vision.

Lens: The transparent structure inside the eye that focuses light rays onto the retina (the nerve layer that lines the back of the eye, senses light and creates impulses that go through the optic nerve to the brain). The lens was named after the lentil bean because it resembled it in shape and size.(17 January 2010 - Online blog Dr. Boothe Lasik )

Acetate Type of plastic often used in eyeglass frames.

Conjunctivitis Inflammation of the conjunctiva, characterized by a pink eye. The cause is either infectious or allergic, though the term "pink eye" is commonly used for any type of conjunctivitis. Other symptoms include burning, discharge, dryness, itching, light sensitivity, eye pain or discomfort, stickiness, tearing and chemosis.

Trabecular meshwork Porous, spongy tissue within the drainage angle of the eye, through which fluids (aqueous humor) exit the eye.

Trauma: Any injury , whether physically or emotionally inflicted. "Trauma" has both a medical and a psychiatric definition. Medically, "trauma" refers to a serious or critical bodily injury, wound, or shock . This definition is often associated with trauma medicine practiced in emergency rooms and represents a popular view of the term. In psychiatry , "trauma" has assumed a different meaning and refers to an experience that is emotionally painful, distressful, or shocking, which often results in lasting mental and physical effects.Dr. William Boothe Lasik

Nodule: A small solid collection of tissue, a nodule is palpable (can be felt). It may range in size from greater than 1.0 cm (3/8 inch) to somewhat less than 2 cm (13/16 inch) in diameter. A nodule may be present in the epidermis, dermis or subcutis (at any level in the skin).

Angle-closure glaucoma: This condition can be acute or chronic. It consists of increased pressure in the front chamber (anterior chamber) of the eye due to sudden (acute) or slowly progressive (chronic) blockage of the normal circulation of fluid within the eye. The block takes place at the angle of the anterior chamber formed by its junction of the cornea with the iris. This angle can be seen by simply looking at someone's eye from the side. Angle-closure glaucoma tends to affect people born with a narrow angle. People of Asian and Eskimo ancestry are at higher risk of developing it. Age and family history are risk factors. It occurs in older women more often than others. When the pupil of the eye is wide open (dilated), the iris is retracted and thickened and it block the canal of Schlemm, a key component of the drainage pathway for fluid within the eye. Blocking the drainage canal of Schlemm sends the pressure within the eye up. With acute angle-closure glaucoma, there is an abrupt increase in intraocular pressure (IOP) due to the buildup of aqueous (fluid) in the eye. The high pressure can damage the optic nerve (the nerve to the eye) and lead to blindness. The elevated pressure is best detected before the appearance of symptoms. That is why when the eyes are dilated in a doctor's office for a refraction, eye pressures are checked. When symptoms of acute angle glaucoma do develop, they include severe eye and facial pain, nausea and vomiting, decreased vision, blurred vision and seeing haloes around light. The eye in a far advanced case of angle closure glaucoma appears red with a steamy (clouded) cornea and a fixed (nonreactive) dilated pupil. Acute angle-closure glaucoma is an emergency because optic nerve damage and vision loss can occur within hours of the onset of the problem. Administering medications to lower the pressure within the eye is done first. In the past, a piece of the iris was then surgically removed in a procedure called an iridectomy to make a hole in the iris and create a channel (other than the canal of Sclemm) to permit the free flow of fluid. Today, a comparable procedure can be done by laser to burn a small hole in the iris to keep the intraocular pressure within normal limits. This condition can be chronic (progressing slowly or occurring persistently) or acute (occurring suddenly). Chronic angle-closure glaucoma, like the more common type of glaucoma (open-angle glaucoma), may cause vision damage without symptoms. (25 July 2008 Dr. William Boothe Dallas )

Dr. Boothe article


Hyperopia Also called farsightedness. Condition in which the length of the eye is too short, causing light rays to focus behind the retina rather than on it, resulting in blurred near vision. Additional symptoms include eyestrain and squinting.

Ultraviolet (UV) The invisible part of the light spectrum whose rays have wavelengths shorter than the violet end of the visible spectrum and longer than X rays. UVA and UVB light are harmful to your eyes and skin.( 26 June 2008 Online press article Dr. Boothe Lasik )

Dr. William Boothe - Aberrometer

Mucormycosis Fungal infection typically occurring in the sinuses or lungs and mainly acquired by those with compromised immune systems and by diabetics. Symptoms include sinusitis, eye and facial pain, fever, a bulging eye and vision loss.

Sjogren's syndrome An inflammatory autoimmune disorder characterized by a dry mouth and dry eyes. Additional eye symptoms include burning, discharge, foreign body sensation, itching and light sensitivity.(11 August 2008 - Blog article Boothe Eye Care )

Cellulitis Inflammation of tissue around the eye. Pre-septal cellulitis affects the lid and other "outer" areas of the eye, whereas orbital cellulitis affects the "inner" areas around the eyeball. Pre-septal cellulitis symptoms include a red, swollen lid, swelling around the eyes and eye or lid pain or discomfort. Orbital cellulitis symptoms include a bulging eye and ophthalmoplegia, as well as a red, swollen lid, swelling around the eyes, eye or lid pain or discomfort and a decrease in vision. An orbital cellulitis is an ocular emergency.

Aspheric Not quite spherical. Aspheric eyeglass lenses are popular among people who have strong prescriptions because they are thin and lightweight, and reduce distortion and eye magnification. Aspheric contact lenses can work as a multifocal, or to correct a single-vision problem like astigmatism.

Melanin Pigment that colors the iris of the eye as well as other parts of the body, including skin and hair.

Epithelial ingrowth LASIK complication in which epithelial cells grow under the LASIK flap; epithelial ingrowth does not usually affect vision.Boothe Laser Center

Lutein An antioxidant that is found throughout the body, but is concentrated in the macula. Lutein is believed to help protect the eyes from free radical damage caused by the sun's harmful rays.

Descemet's membrane Corneal layer between the stroma and the endothelium. (19 September 2007 Dr. William Boothe Lasik )

Boothe Eye Center article


Aberrometer A device that can identify common and more obscure vision errors by measuring the way light waves travel through the eye's optical system.

Homocysteine An amino acid containing sulfur. A high homocysteine level in the blood is a possible risk factor for heart disease. One major study indicates that lowering homocysteine levels through vitamin B supplementation might help prevent diseases associated with impaired function of small blood vessels, such as macular degeneration. More studies are needed to verify such a link.( 14 May 2008 Online article Boothe Eye Center )

Dr. William Boothe Dallas Surgeon

Epiretinal membrane Thin layer of scar tissue on the retina; also called a macular pucker. Epiretinal membranes have a variety of causes, including vitreous detachment, but the cause is often unknown. In its early stages, an epiretinal membrane is often asymptomatic, but some people have blurred vision. You may also develop metamorphopsia.

Decongestant: A drug that shrinks the swollen membranes in the nose and makes it easier to breath. Decongestants can be taken orally or by nasal spray. Decongestant nasal sprays should not be used for more than five days without the doctor's advice, and if so, usually only when accompanied by a nasal steroid. Many decongestant nasal sprays often cause a rebound effect if taken too long. A rebound effect is the worsening of symptoms when a drug is discontinued. This is a result of a tissue dependence on the medication. Decongestants should not be used by patients with high blood pressure (hypertension) unless under doctor's supervision.(29 July 2009 - Online article Dr. Boothe )

Melanosis Condition characterized by melanin (pigment) deposits in the skin or eyes.

Dermatochalasis Excessive, drooping eyelid skin caused by a loss of elasticity in aging skin.

LASEK (Laser Epithelial Keratomileusis) Procedure that is similar to LASIK, except that the surgeon cuts a flap in the epithelium only, instead of through the epithelium and part of the stroma. LASEK is used mostly for people with thin or flat corneas who are poor candidates for LASIK, which requires more corneal tissue for success.

Blood pressure: The blood pressure is the pressure of the blood within the arteries. It is produced primarily by the contraction of the heart muscle. It's measurement is recorded by two numbers. The first (systolic pressure) is measured after the heart contracts and is highest. The second (diastolic pressure) is measured before the heart contracts and lowest. A blood pressure cuff is used to measure the pressure. Elevation of blood pressure is called "hypertension".Dr. William Boothe

ANSI Z87.1-2003 Standard The American National Standards Institute's Practice for Occupational and Educational Eye and Face Protection; eyewear that meets this standard is considered safer than eyewear that does not.

Optical coherence tomography A method of imaging that, in ophthalmology, uses light waves to provide cross-sectional views of interior eye structures. Also known as OCT. (12 March 2010 Boothe Eye Care )

Boothe Eye Center article

Macular degeneration Disorder characterized by changes in the eye's macula that result in the gradual loss of central vision. The exact cause is unknown, but appears to be related to a genetic predisposition, smoking and several other risk factors. Central vision may be blurred, distorted (metamorphopsia) or shadowy before vision loss occurs.

Drugs Many drugs, both legal and illegal, can affect your eyes and vision. These include eyedrops, other topical eye medications, pills and more. Symptoms can include blurred vision, burning, dry eyes, eyelash loss, floaters, halos around lights, light sensitivity, pupils that are dilated, small or unresponsive to light, peripheral or general vision loss and jaundice.( 02 May 2008 Blog article Boothe Laser Center )


More realated articles you may find interesting:
Boothe Eye Center, Dr. William Boothe Dallas, Dr. Boothe Dallas

Dr. William Boothe Dallas,

Dr. William Boothe Dallas

Photokeratitis "Sunburn" of the cornea; symptoms include discomfort, blurred vision, and light sensitivity. The temporary vision loss that can result is called "snow blindness."

Fixation In terms of vision, the eye's ability to maintain gaze upon an object.(30 May 2009 - Online article Dr. Boothe Dallas )

Drugs Many drugs, both legal and illegal, can affect your eyes and vision. These include eyedrops, other topical eye medications, pills and more. Symptoms can include blurred vision, burning, dry eyes, eyelash loss, floaters, halos around lights, light sensitivity, pupils that are dilated, small or unresponsive to light, peripheral or general vision loss and jaundice.

Limbal relaxing incisions A surgical procedure, often performed during cataract surgery, which corrects usually mild astigmatism by flattening the curvature of the eye's clear surface (cornea). Limbal relaxing incisions are inserted at the boundary (limbus) separating the cornea from the white of the eye (sclera). By altering this portion of the eye instead of the center, surgeons are able to preserve the surface and optical qualities of the cornea.

Angiogenesis The formation of new blood vessels in the body. Also see neovascularization.

Angle-closure glaucoma: This condition can be acute or chronic. It consists of increased pressure in the front chamber (anterior chamber) of the eye due to sudden (acute) or slowly progressive (chronic) blockage of the normal circulation of fluid within the eye. The block takes place at the angle of the anterior chamber formed by its junction of the cornea with the iris. This angle can be seen by simply looking at someone's eye from the side. Angle-closure glaucoma tends to affect people born with a narrow angle. People of Asian and Eskimo ancestry are at higher risk of developing it. Age and family history are risk factors. It occurs in older women more often than others. When the pupil of the eye is wide open (dilated), the iris is retracted and thickened and it block the canal of Schlemm, a key component of the drainage pathway for fluid within the eye. Blocking the drainage canal of Schlemm sends the pressure within the eye up. With acute angle-closure glaucoma, there is an abrupt increase in intraocular pressure (IOP) due to the buildup of aqueous (fluid) in the eye. The high pressure can damage the optic nerve (the nerve to the eye) and lead to blindness. The elevated pressure is best detected before the appearance of symptoms. That is why when the eyes are dilated in a doctor's office for a refraction, eye pressures are checked. When symptoms of acute angle glaucoma do develop, they include severe eye and facial pain, nausea and vomiting, decreased vision, blurred vision and seeing haloes around light. The eye in a far advanced case of angle closure glaucoma appears red with a steamy (clouded) cornea and a fixed (nonreactive) dilated pupil. Acute angle-closure glaucoma is an emergency because optic nerve damage and vision loss can occur within hours of the onset of the problem. Administering medications to lower the pressure within the eye is done first. In the past, a piece of the iris was then surgically removed in a procedure called an iridectomy to make a hole in the iris and create a channel (other than the canal of Sclemm) to permit the free flow of fluid. Today, a comparable procedure can be done by laser to burn a small hole in the iris to keep the intraocular pressure within normal limits. This condition can be chronic (progressing slowly or occurring persistently) or acute (occurring suddenly). Chronic angle-closure glaucoma, like the more common type of glaucoma (open-angle glaucoma), may cause vision damage without symptoms.Boothe Eye Care

Biocompatible Able to coexist with living tissues without harming them. For example, artificial lenses are designed to be biocompatible with tissue inside the eye so they won't cause a toxic or immunilogical response that would harm the eye.

Tonic pupil Dilated pupil that reacts sluggishly to light, due to damage to the ciliary ganglion from trauma, viral infections or other causes. The cause is sometimes unknown ("Adie's tonic pupil"). (27 August 2008 Boothe Laser Center )

Dr. William Boothe Lasik article


Cataract Clouding of the natural lens of the eye, usually caused by aging in conjunction with other risk factors, such as exposure to the sun's UV rays, smoking, steroid intake and diabetes. Symptoms include blurred vision, glare, halos around lights, colors that are less bright, a cloudy spot in your vision and, sometimes, temporary vision improvement. Read more about cataracts and cataract surgery.

Central island Refractive surgery complication in which the laser leaves an "island" of corneal tissue in the concave ablation zone. Symptoms include double vision and distortion. Read more about potential complications of LASIK and other kinds of refractive surgery.( 20 June 2007 Online press Dr. Boothe )

Dr. Boothe Laser Center

Keratitis Inflammation of the cornea, caused by an infection or inflammatory process. Symptoms include eye pain or discomfort, light sensitivity, foreign body sensation, grittiness and tearing.

Scotoma Blind spot within the field of view.(04 October 2008 - Online press Dr. Boothe Dallas )

Eye: The organ of sight. The eye has a number of components. These components include but are not limited to the cornea, iris, pupil, lens, retina, macula, optic nerve, choroid and vitreous.

Titanium A type of metal alloy that is very strong. Eyeglasses made of titanium are lightweight, durable and often hypoallergenic.

Microcornea Abnormally small cornea.

Lateral rectus muscle Muscle that moves the eye away from the nose.Boothe Eye Care

Dermatitis: Inflammation of the skin, either due to direct contact with an irritating substance, or to an allergic reaction. Symptoms of dermatitis include redness, itching, and in some cases blistering.

Aqueous humor Clear fluid in the front of the eye, between the cornea and the iris, that provides nutrients to the cornea and the lens. The fluid is produced by the ciliary body. Glaucoma causes a difficulty in draining this fluid, and pressure builds up. The result is damage to the optic nerve and loss of vision. (03 March 2008 Dr. Boothe )

Boothe Eye Center article

Limbal relaxing incisions A surgical procedure, often performed during cataract surgery, which corrects usually mild astigmatism by flattening the curvature of the eye's clear surface (cornea). Limbal relaxing incisions are inserted at the boundary (limbus) separating the cornea from the white of the eye (sclera). By altering this portion of the eye instead of the center, surgeons are able to preserve the surface and optical qualities of the cornea.

Enophthalmos The sinking of the eye into the socket. Causes include development problems in utero, trauma and inflammation.( 02 August 2008 Online press article Dr. William Boothe )


Realated news you may find fascinating:
Dr. William Boothe Dallas, Dr. Boothe, Dr. Boothe Laser Center

Dr. William Boothe Ophthalmologist

Lacrimal gland: A small almond-shaped structure that produces tears. The lacrimal gland is located just above the outer corner of the eye . The lacrimal gland is part of the lacrimal apparatus, the system that forms tears, conveys them through the lacrimal (tear) duct to the eye, and drains the tears.

Burn: Damage to the skin or other body parts caused by extreme heat, flame, contact with heated objects, or chemicals. Burn depth is generally categorized as first, second, or third degree. The treatment of burns depends on the depth, area, and location of the burn, as well as additional factors, such as material that may be burned onto or into the skin. Treatment options range from simply applying a cold pack to emergency treatment to skin grafts.

Corneal edema Swelling of the eye's cornea; causes include intraocular surgery, corneal dystrophies, high intraocular pressure and contact lens complications. Symptoms include vision loss, halos around lights, a white or cloudy spot on the eye, photophobia, eye pain and foreign body sensation.

Eye: The organ of sight. The eye has a number of components. These components include but are not limited to the cornea, iris, pupil, lens, retina, macula, optic nerve, choroid and vitreous.Dr. Boothe Dallas

Ophthalmologist A medical doctor (MD) who specializes in the eye. Ophthalmologists perform eye exams, treat disease, prescribe medication, and perform surgery. They may also write prescriptions for eyeglasses and contact lenses.

Dr. William Boothe - Graves' ophthalmology Article

Optic The rounded, central portion of an intraocular lens (IOL) used in cataract surgery. Optic also more generally refers to eyes or vision.

Graves' ophthalmology Autoimmune eye disorder usually associated with abnormalities of the thyroid gland; symptoms include eyelid retraction, bulging eyes, light sensitivity, eye discomfort, double vision, vision loss, a red or pink eye and a limited ability to move the eyes.(20 September 2008 - Online article Dr. Boothe )

Femtosecond laser Device that creates bursts of laser energy at an extremely fast rate measured in terms of a unit known as a femtosecond (one quadrillionth of a second). These ultra fast energy pulses precisely target and break apart tissue or other substances at a molecular level, without damaging adjacent areas.

Ophthalmoplegia Eye muscle paralysis. Causes include stroke, multiple sclerosis, a tumor, thyroid disease, migraines and progressive supranuclear palsies. Symptoms can include limited eye movement, blurred vision, double vision, nystagmus and ptosis. Tolosa-Hunt Syndrome, often called "painful ophthalmoplegia," is characterized by intense pain behind the eye and a headache.

Ophthalmic: Pertaining to the eye. An ophthalmic ointment is designed for the eye.

Sinusitis Inflammation of the sinuses, due to an infection or an allergic reaction. Probably the most common cause of pain in and around the eye. Symptoms include head pain (headache, pain around the eyes, toothache, jaw pain), nasal discharge, postnasal drip, coughing, eyelid swelling, swelling around the eyes, a stuffy nose, fatigue, bad breath and a sore throat.Dr. Boothe Laser Center

Dr. William Boothe - Presbyopia Article

Strabismus A misalignment of the eyes: the eye don't point at the same object together. Crossed eyes (esotropia) are one type of strabismus; "wall-eyes" (exotropia) are another. The exact cause is unknown, but appears to be a problem with the eye muscles. Strabismus can affect depth perception.

Presbyopia Condition in which the aging eye beginning at around age 40 is unable to focus at all distances, often noticed when print begins to blur. Additional symptoms include eyestrain, headaches, and squinting. Read our article about presbyopia.(08 February 2010 - Online article Boothe Eye Care )

Dr. William Boothe Eye Care Article

Ocular herpes Recurrent viral infection that can cause inflammation and scarring of the cornea. It is not sexually transmitted. There are various types of ocular herpes, ranging from herpes keratitis to more serious forms that can lead to blindness. See our eye herpes article for more details.

Dilate: To stretch or enlarge. It comes from the Latin verb "dilatare" meaning "to enlarge or expand."Dr. Boothe Laser Center

Beta blocker Drug that widens or dilates blood vessels, thus enabling more normal flow of blood. Topical beta blockers applied as eye drops also can lessen fluid production and lower internal eye pressure (intraocular pressure) in eye diseases such as glaucoma to reduce the possibility of optic nerve damage. Beta blockers also are used to control high blood pressure (hypertension). Side effects can include respiratory problems.

Ophthalmoplegia Eye muscle paralysis. Causes include stroke, multiple sclerosis, a tumor, thyroid disease, migraines and progressive supranuclear palsies. Symptoms can include limited eye movement, blurred vision, double vision, nystagmus and ptosis. Tolosa-Hunt Syndrome, often called "painful ophthalmoplegia," is characterized by intense pain behind the eye and a headache. (04 May 2008 Dr. Boothe Lasik )