Tuesday, May 11, 2010
Dr. Boothe about Myopia
Myopia- Myopic people typically have difficulty seeing objects at a distance. Myopia can be so severe that people have difficulty seeing objects up close too.
Dr. Boothe Eye Center
Refractive Error- This word refers to vision problems associated with the cornea: Astigmatism, Hyperopia, and Myopia.
Optician- An optician makes glasses and performs adjustments on frames.
Dr. William Boothe:
WILL MY PROCEDURE BE PAINFUL?
Patients experience virtually no discomfort during the LASIK Vision Correction procedure. Eye drop anesthesia is used to numb the eye prior to the procedure, so no injections are necessary. Immediately after treatment, some patients have reported minor discomfort, like having an eyelash or a dry contact lens in their eye.
Keratomileusis- Keratos is the greek word for cornea, and mileusis means to reshape. Together they mean to reshape the cornea.
PRK is an outpatient procedure generally performed with local anesthetic eye drops. This type of refractive surgery gently reshapes the cornea by removing microscopic amounts of tissue from the outer surface with a cool, computer-controlled ultraviolet beam of light. The beam is so precise it can cut notches in a strand of human hair without breaking it, and each pulse can remove 39 millionths of an inch of tissue in 12 billionths of a second. The procedure itself takes only a few minutes, and patients are typically back to daily routines in one to three days.
Before the procedure begins, the patient's eye is measured to determine the degree of visual problem, and a map of the eye's surface is constructed. The required corneal change is calculated based on this information, and then entered into the laser's computer.
Since 1995, a limited number of laser systems has been approved by FDA to treat various refractive errors, both with PRK and LASIK.
According to FDA's Center for Devices and Radiological Health, clinical studies showed that about 5 percent of patients continued to always need glasses following PRK for distance, and up to 15 percent needed glasses occasionally, such as when driving. In addition, many patients experienced mild corneal haze following surgery, which is part of the normal healing process. The haze appeared to have little or no effect on final vision, and could only be seen by a doctor with a microscope. Some patients experienced glare and halos around lights. These conditions, however, diminished or disappeared in most patients in six months. For about 5 percent of patients, however, best-corrected vision without corrective lenses was slightly worse after surgery than before. In view of these findings, FDA and the Federal Trade Commission (which oversees advertising) issued a letter to the eye-care community in May 1996 warning that unrealistic advertising claims, such as "throw away your eyeglasses," and unsubstantiated claims about success rates could be misleading to consumers. Boothe Eye Care
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.
Boothe Laser Center
Wavefront / Custom LASIK
At Laser Eye Center, our surgeons are the first to utilize LADARWavey® CUSTOMCORNEA® wavefront technology to measure and address both lower and higher order aberrations (visual imperfections in the eye's optical system). Unless both lower and higher order aberrations are addressed during laser vision correction, the quality of your vision may not be ideal, even if you have post-operative vision of 20/20.
More realated results:
Dr. Boothe ~ Boothe Eye Center ~ Dr. Boothe Eye Care