Correlating Preoperative Biometric Data, Capsulorhexis size and different types of IOLs with Post-phacoemulsification Dysphotopsia

Abstract

ysphotopsia became one of the most important symptoms after uneventful cataract surgery that may be positive (arcs, streaks, halos) or negative (dark crescent or arc at the temporal side) despite excellent surgery and excellent postoperative VA. Measuring the functional visual acuity of patients became important as the patient may complain although his VA is 6/6. The questionnaire used in our study is one of the methods used in the measurement of functional VA. IOL edge design is an important factor in development of dysphotopsia, square edged IOL cause dysphotopsia more than round edged IOL. Dysphotopsia can be managed by reassurance of the patients as the symptoms may disappear after a period of time either due to adaptation or anterior capsule opacification or the patients stop complaining. Some patients can't tolerate symptoms so treatment must take place either by YAG laser anterior capsulotomy, IOL exchange with other in the sulcus, secondary Piggy back IOL.