Your pre-LASIK assessment will involve a series of eye tests to determine if you are a suitable candidate for the procedure. Dr. Mneimneh and his staff at Beirut Lasik Center Lebanon will also discuss with you the benefits and risks associated with LASIK
Step 1: Complete Eye Examination
Laser eye surgery has helped millions of people around the world but it's not for everyone. Once you are considered to be a good candidate for laser vision correction, you should get ready for your pre-operative assessment.
Dr. Mneimneh will conduct a series of eye examinations to determine if you are a suitable candidate for LASIK.
The eye examination will include:
- Medical history
- Visual acuity
- Slit-lamp examination
- Retinal examination
- Corneal topography – computer mapping of the eye
- Corneal pachymetry – measurement of corneal thickness
- Pupillometry – measurement of pupil size
Dr. Mneimneh will ask you also to follow a few directions prior to your pre-operative assessment to optimize the results from your eye examination.
Refrain from wearing soft contact lenses at least seven days before the eye examination;
Refrain from wearing hard/RGP (rigid gas permeable) contact lenses at least two weeks before the eye examination (the longer you not wear your RGP lens, the better)
Step 2: Pre-Operative Assessment
Your vision will be evaluated with the same tests used to prescribe your eyeglasses or contacts. Dr. Mneimneh will use this information to help determine how to reshape your cornea to correct your vision and where to direct the laser beam to accomplish that reshaping.
In the case of the Wavefront guided (A-CAT) procedure, your vision will be evaluated using the Allegro wavefront scanning device to measure lower and higher order aberrations. This procedure uses a high-resolution excimer laser system to correct for lower and higher order aberrations that can cause night vision problems.
Topography guided (T-CAT) goes beyond reshaping your cornea based on wavefront mapping. Dr. Mneimneh will use the Pentacam and the Allegro Topolyzer to evaluate your corneal shape. In this case, the laser’s path is guided by the "three-dimensional image” of your cornea. Using computer imaging software, the three-dimensional corneal image is reconfigured to correct for both aberrations and corneal asphericity. Then, with reference to the new configuration, the corneal surface is selectively re-profiled using a high-resolution excimer laser system.
More than one pre-operative examination may be required to assess stability of your vision.