Posters

Evaluation of an electronic toric marker compared with slitlamp marking for cataract surgery

Poster Details

First Author: M. Orts Vila SPAIN

Co Author(s):    A. Fernando   J. Hueso Abancens                 

Abstract Details

Purpose:

To compare accuracy of an electronic toric device  in marking the axis of astigmatism before cataract surgery compared with  manual slitlamp marking.

Setting:

Ophthalmology, Hospital General Universitario de San Juan, Alicante, Spain

Methods:

This prospective clinical study  included 39 eyes undergoing cataract surgery with coexisting corneal astigmatism. Eyes were randomly assigned to 2 groups, main incision was made in the steepest meridian. In group A, the steepest axis was marked with an electronic device (Electronic Toric One Step Marker, Asico) held frontally. In group B the horizontal meridian was marked at the slitlamp. Intraoperativelly, the steep meridian was marked using a second device. The difference from the reference axis was calculated using a very narrow slit aligned with the triangular internal mark of the incision done with the point of the knife.

Results:

The electronic toric marker (A group) had a difference of 3.58º  (standard deviation 1.4º) from the reference axis. Eyes marked manually with the slit lamp (B Group) had a difference of 7.12 (standard deviation 3.72º) (p<0.001).

Conclusions:

Astigmatism axis marking was more precise with the Electronic One Step Marker. Additionally, this electronic marker was, in our hands, easier and faster to use than manual slitlamp marking.

Financial Disclosure:

NONE