Intraoperative aberrometry and newer-generation IOL formulae have signifi cantly decreased error in predictions of correction, but error still occurs. It is important to use that error as information when planning fellow eye surgery.
Reviewed by Steven Naids, MD
For cataract patients who have “normal” eyes, the error between the predicted refractive correction and the actual correction can be used to help predict error for the fellow eye, and a small study has found a good correlation between prediction error in the two eyes. “Cataract surgery in today’s world is very much a refractive procedure,” said Steven Naids, MD, Advanced Vision Care in Los Angeles.
“Achieving predictable and reproducible outcomes is very important.” Dr. Naids and colleagues tested the hypothesis that error in the first eye can guide decisions in IOL selection for the fellow eye. They compared predictive error, the difference between the manifest spherical equivalent and the predicted spherical equivalent, across multiple formulae and discussed whether predictive error in the first eye can help determine the correction needed in the fellow eye.
Steven Naids, MD
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This article was adapted from Dr. Naids’ presentation at the 2018 meeting of the American Academy of Ophthalmology. Dr. Naids has no financial interests to disclose.