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Piggyback IOL implantation effective, less traumatic than IOL exchange

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Implanting piggyback IOLs appears safe and effective for treating high anisometropia in pseudophakic eyes, according to a study by researchers in Berlin. The procedure may also be a less traumatic alternative to IOL exchange, the authors noted.

Bashar Moustafa, MD, and colleagues reviewed outcomes for 27 patients implanted with a second IOL between 2000 to 2006 at an average age of 65 years. Nineteen patients were clinically examined postoperatively, and data for the other eight patients were collected from the patients' files, according to the study.

At 38 months mean follow-up, the mean spherical equivalent had improved from -7.86 D preoperatively to -1.77 D in myopic eyes and from 1.64 D preoperatively to -0.09 D in hyperopic eyes. In addition, postoperative anisometropia had decreased from 4.64 D preoperatively to 0.9 D at final follow-up, the authors reported.

The study is published in the September issue of Der Ophthalmologe.