Astigmatism correction in cataract surgery in moderate astigmatism patients: comparison of toric IOL and femto-assisted AI

Session Details

Session Title: Toric IOLs & Lens Power Calculations

Session Date/Time: Sunday 15/09/2019 | 08:00-10:00

Paper Time: 08:55

Venue: Free Paper Forum: Podium 3

First Author: : J.Kim SOUTH KOREA

Co Author(s): :    H. Chung   J. Lee   J. Lee   H. Lee   S. Park   H. Tchah              

Abstract Details

Purpose:

This study is to compare astigmatism correction of toric IOL and femto-assisted arcuate incision in cataract surgery.

Setting:

Ophthalmology clinic at Asan Medical Center, Seoul, Korea (between November 2016 and August 2018)

Methods:

All study participants (from 1.0 to 2.0 of preoperative corneal astigmatism by corneal topography) had a cataract surgery to 1 well-experienced surgeon. Patients were categorized into two groups, 14 eyes for toric IOL insertion, 15 eyes for femto-assisted arcuate incision. We measured uncorrected visual acuity, best corrected visual acuity, spherical power and cylindrical power by auto-refractokeratometer preoperatively, 1month postopearatively, 3months postoperatively.

Results:

In toric IOL group, cylindrical power was 2.16±1.55D preoperatively, 0.62±0.4D at 1month postoperatively, 0.72±0.36D at 3months postoperatively. Postoperative cylindrical power was significantly corrected (p=0.001 at 1month, p=0.012 at 3months) by Wilcoxon signed rank test. In femto-assisted AI group, cylindrical power was 1.83±1.11D preoperatively, 1.02±0.60D at 1month postoperatively, 1.12±0.72D at 3months postoperatively. Postoperative cylindrical power was significantly corrected (p=0.035 at 1month, p=0.033 at 3 months) when assessed by Wilcoxon signed rank test. No significant difference in cylindrical power was observed between two groups preoperatively (p=0.715), 1month postoperatively (p=0.07), 3months postoperatively (p=0.161) by Mann-Whitney U test.

Conclusions:

Cylindrical power was significantly corrected after cataract surgery in two groups. Toric IOL group showed better results than femto-assisted arcuate incision in astigmatism correction, but there were no significant difference. Longer follow-up for larger patients would provide further outcomes.

Financial Disclosure:

None