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Comparison of symptomatic posterior capsule opacification needing Nd:YAG laser posterior capsulotomy post cataract surgery of two different 360-degree square edge hydrophilic acrylic intraocular lenses

Poster Details

First Author: M.Chakrabarti UK

Co Author(s):    A. Sarmad   S. Bandyopadhyay   S. Elsherbiny              

Abstract Details


To identify the rate of posterior capsular opacification (PCO) and any difference in the time taken to develop symptomatic PCO requiring Nd:YAG laser posterior capsulotomy between two groups of patients post implantation of two 360-degree square edge hydrophilic acrylic intraocular lenses (IOL)- the Rayner C-flex IOL and the Lenstec Softec IOL. This is the first study comparing the PCO rates following two different acrylic hydrophilic IOL implantation.


Nd:YAG laser clinic in a tertiary level Ophthalmology hospital, Birmingham and Midlands Eye Centre, Birmingham, UK. The clinic and the theatre records were accessed.


One Hundred and ninety-three patients who had undergone Nd:YAG laser posterior capsulotomy for symptomatic PCO over a fifteen-month period were retrospectively analysed. Ninety-four of these patients had the Rayner C-flex IOL and the other ninety-nine patients had the Lenstec Softec IOL implanted post cataract surgery in the past. We collected information regarding demographics, diabetic status, and interval between surgery and Nd:YAG laser. We also counted the total number of the two different IOLs implanted (Rayner C-flex-8394, Lenstec Softec IOL- 6179) over the fifty-five months period, to calculate the rate of PCO for each.


There was no significant difference in mean age, gender, diabetic status and IOL power between the two groups. The incidence of Nd:YAG laser was smaller for the Rayner IOL (1.12%), compared to the Lenstec Softec IOL (1.6%). We did, however, find a statistically significant difference in the time period from surgery to Nd:YAG laser, with the Lenstec IOL having a longer mean interval than the Rayner IOL (732.39 days vs 601.97 days, p value- 0.006599).


To our knowledge, this is the first study comparing the incidence of symptomatic PCO and the time interval for Nd:YAG laser post two different Hydrophilic acrylic IOLs. Our study shows a low incidence of symptomatic PCO post Hydrophilic acrylic IOL implantation. The Rayner C-flex IOL has a lower incidence of PCO, but the time interval to develop symptomatic PCO needing Nd:YAG laser is more with Lenstec Softec IOL. This information could guide the Ophthalmic surgeons regarding choice of IOL and help to inform patients better regarding the possible incidence of needing future Nd:YAG capsulotomy post cataract surgery with IOL implant.

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