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Surgeon: Pupil size important to presby-LASIK outcomes

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SINGAPORE — A patient’s pupil size cannot be overlooked when preparing to perform presby-LASIK, stressed one surgeon speaking here.

Jerry Tan, MD, told attendees of the Asia-Pacific Academy of Ophthalmology meeting to remember that small and large pupils can negate successful topographies.

“When you focus near, the pupil shrinks, so anything done on the outer surface of the cornea has no effect on vision,” Dr. Tan said.

Dr. Tan said presby-LASIK currently treats hyperprolate corneas, steep central island ablations, decentered steep islands and a centered steep annulus. He explained that hyperprolate cornea is the only one of these that can be corrected with spectacles if the visual outcome is not satisfactory.

“Presby-LASIK is a hot topic, but I am still up in the air about it,” he said. “There is still a lot to learn and discover with this procedure.”