http://www.osnsupersite.com/view.asp?rID=23660

OSN SuperSite Breaking News 9/11/2007

Pupil size could have correlation with visual performance in a multifocal IOL

STOCKHOLM, Sweden — The smaller the size of patient's pupil, the better it performed for both near and distance vision with a multifocal IOL, Kjell Gunnar Gundersen, MD, said here.

Dr. Gundersen presented the results of a study that compared Alcon's AcrySof IQ monofocal IOL and AcrySof ReSTOR multifocal, diffractive IOL at the European Society of Cataract and Refractive Surgeons meeting. He found that patients who had a small pupil size and were implanted with the ReSTOR IOL had significantly less spectacle dependency at near and intermediate distance.

"It is my opinion that all potential candidates for ReSTOR lenses should have pupil measurements on preoperative examination," he said.

The randomized, prospective study looked at 98 eyes divided into two groups. The first group consisted of cataract patients who received the AcrySof IQ monofocal IOL. The second group consisted of cataract patients who received the AcrySof ReSTOR multifocal, diffractive IOL. Postoperatively, patients filled out a questionnaire to assess their preoperative expectations and overall postoperative satisfaction with their IOL.

Dr. Gundersen found that ReSTOR patients were slightly more satisfied than IQ patients, but the difference was not statistically significant. IQ patients had significantly better uncorrected and best corrected visual performance at distance, he said.