Postoperative astigmatism following dual-optic accommodating IOL implantation

Poster Details

First Author: V.Bohorquez COLOMBIA

Co Author(s):    R. Alarcon   A. Morato           

Abstract Details

Purpose:

To quantify surgically induced corneal astigmatism (SIA) at 1, 3, 6 and 12 months after implantation of Synchrony dual-optic accommodating IOL.

Setting:

Servioftalmos. Bogota, Colombia.

Methods:

Prospective, non-randomized series of cases. Thirty six (n=36) eyes implanted with Synchrony dual-optic accommodating IOL were included in the study. Postoperative astigmatism was examined by manual keratometry (K) and sphero-cylinder refraction at 1, 3, 6 and 12 months post surgery. Surgically induced corneal astigmatism was calculated by converting the keratometric measurements to the corresponding Jackson crossed-cylinder J0 and J45 components (power vector analysis).

Results:

All incisions were clear corneal made either superiorly or temporally. The mean incision size was 3.85 ± 0.18mm. The mean ?K (steep K – flat K) ± standard error (SE) was 0.31D ± 0.03 preoperatively, 0.73D ± 0.08 at 1M, 0.50D ± 0.07 at 3M, 0.53D ± 0.06 at 6M, and 0.45D ± 0.07 at 12M postoperatively. Repeated measures ANOVA with post-hoc Holm-Sidak analysis showed that preoperative ?K was significantly different from 1, 3 and 6 months data but similar to the 12 month data (ANOVA, F4,140 = 9.09 p < 0.01). The overall magnitude of SIA was -0.67D ± 0.08 at 1 month, -0.51D ± 0.06 at 3 months, 0.51D ± 0.05 at 6 months, and 0.48D ± 0.07 at 12 months postoperatively.

Conclusions:

Successful implantation of Synchrony dual-optic IOL using a preloaded injector was achieved through a 3.8 mm incision. The surgically induced corneal and refractive astigmatism stabilized to within 0.50D by 3 months after surgery. FINANCIAL DISCLOSURE?: ... research is funded, fully or partially, by a competing company