You'll learn about the various procedures to correct nearsightedness, farsightedness, and astigmatism, what outcomes you can expect, the recovery process, risks and other considerations, and cost. Pachymetry Pachymetry will be measured to determine the thickness of the cornea. This measurement will also be followed postoperatively. Tonometry Tonometry is taken to determine the intraocular pressure both preoperatively and postoperatively. This is a technique employed to determine the number of endothelial cells present on the back of the cornea, as well as the health of the endothelial cells.
Endothelial cells are responsible for corneal clarity and appropriate hydration of the cornea.
This is a contrast sensitivity test that will be done prior to and following the Excimer Laser surgery. Contrast sensitivity measures the ability of the eye to distinguish images under varying degrees of lighting. Both automatic and manual keratometry will be done to measure the curvature of the central 3 mm of the cornea. Many of the tests previously performed may be repeated the day of your surgery, especially if you recently discontinued wearing your contact lens. If you wear contact lenses you will need to stop wearing them for at least a week before the surgery.