Friday, June 4, 2010

Dr. William Boothe about Acuity

Dr. Boothe Eye Care


Farsightedness, Hyperopia:
Farsighted people can usually see things that are far away better than things that are close. A farsighted prescription will have a positive number under the sphere column. Dr. Boothe Eye Center

LASEK- Or epi-LASIK, may be a Laser Eye Surgery option for patients with thinner corneal epithelia. A solution is used to raise the epithelium. A "bubble" forms through the center of the microkeratome, making it safe to create a flap. After the laser application, the flap is repositioned on the cornea and held in place by a soft, non-prescription contact lens.

HOW LONG WILL MY LASIK PROCEDURE TAKE?
The LASIK procedure time is between five and fifteen minutes. We ask our patients to plan to be with us for approximately two hours on the day of their treatment. This gives our medical team adequate time for your procedure preparation, additional paperwork, final examination, and give you an opportunity to ask questions after your vision correction.

Keratomileusis- Keratos is the greek word for cornea, and mileusis means to reshape. Together they mean to reshape the cornea.
Dr. Boothe Laser Center: Presbyopia- "Presbys" is Greek for "old man" and "opia" refers to the eye. Presbyopia typically occurs in our late thirties or early forties, and it can make reading things up close difficult. Our lenses lose their ability to accomodate, or change shape. Some patients may be good candidates for Monovision as an Alternative to Bilateral LASIK.
What the FDA regulates
In the United States, the Food and Drug Administration (FDA) regulates the sale of medical devices such as the lasers used for LASIK. Before a medical device can be legally sold in the U.S., the person or company that wants to sell the device must seek approval from the FDA. To gain approval, they must present evidence that the device is reasonably safe and effective for a particular use, the "indication." Once the FDA has approved a medical device, a doctor may decide to use that device for other indications if the doctor feels it is in the best interest of a patient. The use of an approved device for other than its FDA-approved indication is called "off-label use." The FDA does not regulate off-label use or the practice of medicine.

Dr. William Boothe



Acuity- Acuity refers to the sharpness or clarity of your vision.

Cornea- The cornea is the transparent front portion of the eyeball that covers the iris and pupil; it is continuous with the sclera.

The FDA does not have the authority to:

Regulate a doctor's practice. In other words, FDA does not tell doctors what to do when running their business or what they can or cannot tell their patients.
Set the amount a doctor can charge for LASIK eye surgery.
"Insist" the patient information booklet from the laser manufacturer be provided to the potential patient.
Make recommendations for individual doctors, clinics, or eye centers. FDA does not maintain nor have access to any such list of doctors performing LASIK eye surgery.
Conduct or provide a rating system on any medical device it regulates.
The first refractive laser systems approved by FDA were excimer lasers for use in PRK to treat myopia and later to treat astigmatism. However, doctors began using these lasers for LASIK (not just PRK), and to treat other refractive errors (not just myopia). Over the last several years, LASIK has become the main surgery doctors use to treat myopia in the United States. More recently, some laser manufacturers have gained FDA approval for laser systems for LASIK to treat myopia, hyperopia and astigmatism and for PRK to treat hyperopia and astigmatism. Boothe Eye Center
LASIK

One of the most popular ways to correct vision is with a procedure called LASIK (laser in-situ keratomileusis), which uses a laser to change the curvature of the cornea (outer window of the eye). LASIK has quickly become the procedure of choice for most patients because they recover quickly and have fewer side effects and complications than with other methods of vision correction. In fact, most LASIK patients notice a significant improvement in their vision soon after surgery. LASIK removes tissue within the cornea to treat low to high levels of nearsightedness, farsightedness and astigmatism.
Boothe Laser Center Microkeratome- A blade that creates a flap in the cornea during LASIK Surgery.