Official ESCRS | European Society of Cataract & Refractive Surgeons


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

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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


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


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


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.


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.


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.

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