London 2014 Registration Visa Letters Programme Satellite Meetings Glaucoma Day 2014 Exhibition Hotel Booking Virtual Exhibition Star Alliance
london escrs

Course handouts are now available
Click here

Come to London


WATCH to find out why

Site updates:

Programme Updates. Programme Overview and - Video Symposium on Challenging Cases now available.

Impact of ICL implantation on stereoacuity

Search Abstracts by author or title
(results will display both Free Papers & Poster)

Session Details

Session Title: Posterior chamber Phakic IOLS for correction of Myopia

Session Date/Time: Monday 15/09/2014 | 08:00-10:30

Paper Time: 09:05

Venue: Capital Hall B

First Author: : S.Gupta INDIA

Co Author(s): :    S. Khokhar   T. Agarwal   R. Tewari        

Abstract Details


: To prospectively assess the impact of ICL implantation on change in stereoacuity.


Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences


Patients coming to our outpatient department for refractive surgery for myopia were recruited. All patients underwent a complete ophthalmic examination before the surgery. Stereoacuity was tested pre-operatively as well as post-operatively after 4 weeks in all patients using the Randot dot test at 3 meters (range 400- 60 sec) using polarising glasses for distance, and TNO test using red green glasses for near stereoacuity. Staar Vician ICL was implanted in all eyes using the prescribed protocol.


Of the 46 patients operated, 18 were males and 28 were females. The mean UCVA in the patients was 0.049 + 0.1 decimals (range: 1-0), mean BCVA was 0.71 + 0.1 decimal units (range: 1.2-0.17) and the mean spherical error was -10.72 +4.6 decimal units (range: -1 to -19) and the mean cylindrical error was -1.12 + 1.7 decimal units (range: -6 to 0). The median stereoacuity for near was 200 sec (mean 700.74 + 784.5 sec, range: 240-2000 sec). The median post-operative stereoacuity for near was 100 sec (mean 252.87 + 484.61; range 15-2000 sec). Stereoacuity for near changed by a mean value of 447.8 sec, (R: 0- 1940 seconds; median: 60 sec) which was significant at p<0.0001. (Wilcoxon signed rank test). Baseline stereoacuity for distance was median 2000, mean 1616.5, standard deviation 747.7 (range 45-2000). Post-operative stereoacuity was median 2000 sec, mean 1228.72 sec, standard deviation 885.1 (range 240-2000 sec). Change in distance stereo-acuity post-operatively was significant at p=0.002; (wilcoxon signed rank test). There was a weak correlation (Spearman’s rho coefficient) between improvement in near stereoacuity with increase in spherical equivalent (-0.26); whereas it was not observed with distance stereoacuity.


ICL implantation may aid in improving stereo-acuity post-operatively.

Financial Interest:


Back to previous