ABSTRACT
A. INTRODUCTION Success after refractive surgery is not limited to the patients’ performance in identifying optotypes on Snellen charts in dim examination rooms. In addition to the loss of best corrected visual acuity (BCVA), the quality of vision can be affected by loss of contrast sensitivity, glare, halos and other optical abberations (1). The effect of LASIK surgery on light transmission through the corneal tissue is not limited to changes in corneal curvature. Other effects include decreased corneal sensation, epithelial irregularities, flap wrinkling, interface inflammation, epithelial ingrowth, and corneal ectasia (2,3). The quality of vision after LASIK may also be reduced as a result of decentration, irregular astigmatism, regression, and keratoconjunctivitis sicca (4).
