Toric intraocular lens vs opposite clear cornea incisions comparison for astigmatism correction in cataract surgery

Session Details

Session Title: Presented Poster Session: Toric IOLs

Venue: Poster Village: Pod 1

First Author: : P.Marti Rodrigo SPAIN

Co Author(s): :    A. Martinez Palmer   J. Tuñí Picado   E. Segovia Maldonado   J. Armentia Perez de Mendiola              

Abstract Details

Purpose:

The purpose of this study was to compare the reduction of the astigmatism with two techniques, aspheric Precizon toric intraocular lens (toricIOL) or opposite clear cornea incisions (OCCI) for the correction of corneal astigmatism in cataract surgery. The main variable of study was the reduction of the astigmatism. Other variables studied were non corrected visual acuity (UCVA), best corrected visual acuity (BCVA) and espheric equivalent (EE).

Setting:

Hospital de l’Esperança, Parc de Salut Mar. Public Health System. Single surgeon performed the surgeries. Dr. Martinez Palmer. Patients above 1,5 diopters (D) of regular astigmatism were consecutively included until we reached 40 eyes of 36 patients for OCCI group and 40 eyes of 29 patients for toricIOL

Methods:

Patients who had to undergo cataract surgery with more than 1,25 D of astigmatism detected on biometry were selected to either group IOL or LRI. Patients over 3D of astigmatism were selected for IOL group. Subjective graduation, optical coherence biometry (IOLMaster), Atlas topography and a complete ophthalmological exploration was performed. After cataract surgery the patients were evaluated at 1 day postoperative, at 1 week for toric lens to check any rotation on the predicted position of the lens. At 1 month postoperative a subjective graduation was performed, or a month later after of pseudophakic macular oedema resolution /lens rotation

Results:

Surgeries were performed uneventful. Two patients developed pseudophakic macular oedema, one of each group. Both resolved with single trigon depot injection. Two patients in toricIOL group required new surgery for significative rotation of the lens Previous surgery, mean BCVA for OCCI group was 0,45 logMAR, and 0,41 logMAR for the toricIOL group. The mean astigmatism reduction was for the OCCI group of 1,24D, and for the toricIOL group 2,78D. The previous mean astigmastism was higher for the toricIOL group (3,68D against 2,01D), the final mean astigmatism was quite similar, 0,9D for toriIOL group and 0’77D for OCCI group

Conclusions:

There are several techniques for astigmatism correction during cataract surgery. Opposite clear cornea incisions are a simple, extended technique in cases under 3D astigmatism. In our study the final astigmatism correction needed was quite similar (0,9 vs 0,77D) although the initial astigmatism was nearly the double for toric IOL group. Stablishing a 3D limit for toric intraocular lens indication seems appropriate in a public health hospital.

Financial Disclosure:

None