Comparison between femtosecond laser capsulotomy and manual continuous curvilinear digital image guided capsulorrhexis

Purpose:

To measure and compare size and shape parameters of femtosecond laser capsulotomy with manually continuous curvilinear digital guided capsulorhexis (CCC) and their refractive outcomes.

Methods:

Laser capsulotomies in 40 eyes of 40 patients were performed using LenSx femtosecond laser device (Alcon, Forthworth, US) and its results were compared with the CCC digital guided carried out in 40 eyes of 40 patients using the Callisto Eye digital image system (Zeiss, Germany). Capsulorhexis circularity, shape and capsule overlap were measured using Adobe Photoshop (Adobe Systems Inc.) and postoperative refraction outcomes were evaluated in both groups.

Results:

Highly accurate and predictable capsulotomy diameter, size and shape were achieved with femtosecond laser capsulotomy compared with capsulorhexis and showed statistical difference between groups. Spherical equivalent comparison between groups showed no statistical difference.

Conclusions:

Femtosecond laser anterior capsulotomy with programed circularity had the intended diameter with average standard deviation values, indicating higher reproducible outcomes. Capsulorhexis performed by an experienced surgeon with auxiliary image guide and appropriate settings provides similar results our results suggest that different techniques are equally effective.

Capsulorhexis/methods; Laser therapy; Phacoemulsification; Ocular refraction; Vision