Author (brunohill). Submitted on Thu, 25 Aug 2011
You have been myopic for years, and you need a change. You have consulted your doctor who performs an eye examination to evaluate your chances of becoming a good candidate for Laser-Assisted In Situ Keratomileusis or LASIK. There are patients who, unfortunately, are not qualified for LASIK due to a number of circumstances. These include patients with high prescription, thin corneas, abnormal corneal curvature, dry eyes, and large pupils.
Patients wearing extreme eyeglass prescriptions may not be good candidates for LASIK. The reason for this is that high prescription, whether due to myopia or hyperopia, requires removal of too much corneal tissue in order to safely perform the procedure. Those patients who wear glasses with prescription that often changes and those patients who are not always required to wear glasses may not be recommended for LASIK.
Because the procedure uses excimer laser to remove small amounts of corneal tissue, thickness of the patient’s cornea must be measured before the procedure. If your cornea is too thin, it will be very risky for you to undergo LASIK. Corneal weakening is the usual outcome experienced by patients with a thin cornea after the procedure. Your doctor may simply recommend surface ablation which does not require corneal tissue removal.
Aside from measuring the thickness of your cornea, your doctor must also determine if your cornea has a normal shape prior to the laser eye surgery in Texas. Several tools called topographers can be used to determine not only the thickness, but the shape of a patient’s cornea. Abnormal shape is a sign of a weak cornea, which can cause risk during the procedure.
You have dry eyes if you often experience burning, redness, and tearing in your eyes. A LASIK treatment may not be a good option as it may even worsen your case. Corneal nerves are usually cut during the procedure, which will definitely affect tear secretion in the eyes. Patients without dry eyes usually recover after the procedure, unlike patients with dry eyes. If this is your case, consider other forms of refractive surgery other than laser eye surgery in Texas.
Your doctor may also disqualify you from having laser eye surgery in Texas if you have large pupils. You may actually undergo LASIK if you have large pupils, but you will notice glare, halos, or other night vision issues after the procedure. Pupil size can be measured by your doctor in a dark room.
If you have questions, please visit us at www. ecot.com for complete details and answers.