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Visx Star laser effective for astigmatism

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PHILADELPHIA — Hyperopic astigmatism can be treated effectively with the Visx Star laser system according to a presentation here.

Noel Alpins, MD, reported on a consecutive series of 97 eyes treated for hyperopia. He presented his study here at the American Society for Cataract and Refractive Surgery meeting.

All eyes had a magnitude of astigmatism of less than or equal to the spherical error, Dr. Alpins said. Mean spherical equivalent preoperatively was + 3.23 D. Postoperatively, the mean spherical equivalent was +0.09 D. Mean astigmatism before treatment was +1.4 D and postop was +0.5 D.

Dr. Alpins said adjusting the manufacturer’s nomogram allowed him to reduce astigmatism by up to an additional 30%. He said he used a coefficient adjustment of 1.30.