Assessment of IOL Centration 1 Day and 1 Month After Cataract Surgery
Purpose
To assess the difference in intraocular lens (IOL) centration within the capsular bag after cataract surgery at postoperative day 1 and postoperative month 1.
Methods
Prospective study performed at Bascom Palmer Eye Institute, University of Miami, FL, USA on patients who had undergone traditional or FS laser assisted cataract surgery IOL implantation (monofocal, toric or multifocal). ITrace (Tracey Technologies) was performed on postoperative day 1 and postoperative month 1. Distances between the center of the IOL and the center of the pupil (DIP) and between the center of the limbus (DIL) and the corneal vertex (DIV) were assessed.
Results
Preliminary results on 6 eyes, at postoperative day 1, revealed a mean DIP of 0.3310±.132mm, mean DIL of 0.353±0.058mm, and mean DIV of 0.260±0.109. At postoperative month 1, mean DIP was 0.202±0.189mm, mean DIL was 0.240±0.167mm, and mean DIV was 0.225±0.074mm. Mean value coordinates (x,y) for the center of the IOL were (-0.064;-0.163) at postoperative day 1 and (-0.038;0.056) at postoperative month 1. No significant difference was found between postoperative day 1 and postoperative monh 1 (p=0.29 for x and p=0.28 for y).
Conclusion
Preliminary results showed no significance difference in IOL centration between postoperative day 1 and postoperative month 1.