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Wavefront-guided orientation of accommodative IOL improves near vision results
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LAS VEGAS — Using wavefront technology to determine how to orient the eyeonics crystalens accommodating IOL can slightly improve best corrected near visual acuity without affecting the quality of distance vision, according to a surgeon speaking here.
Kevin L. Waltz, MD, presented data on 40 consecutive eyes, in which 20 had wavefront-guided orientation of the crystalens and 20 had random placement of the lens, at the American Academy of Ophthalmology meeting.
At 1 month, both groups had similar results for uncorrected distance visual acuity. However, patients in the wavefront-oriented group had significantly better uncorrected near vision, averaging J 2.7 compared to J 3.4 for patients in the random placement group (P < .01), according to the study.
"Crystalens has an asymmetry," he said. "And accommodation doesn't decrease in a uniform fashion." Therefore, placement of the lens should be optimized, he said.
"It appears likely that with identifying some orientation for aspheric lenses such as a crystalens, applying it to the eye along that axis, potentially we can improve near vision without hurting distance vision," he said.