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Aberration-free lens “more forgiving” of decentration, tilt, surgeon says
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FLORENCE, Italy — With a number of aspheric IOLs on the market, the “most reasonable” choice may be a lens that induces no spherical aberration, said Richard L. Lindstrom, MD.
“Ideally, an aspheric IOL with negative spherical aberrations, such as the Advanced Medical Optics Tecnis, can give the best results in terms of quality of vision, because it neutralizes the positive spherical aberrations of the cornea,” he said here during the Florence Symposium.
“However, the smallest decentration or tilting of the lens will induce coma, which degrades the image. For these lenses, you need a perfect surgery,” he added.
An aspheric lens that may be “more forgiving” of decentration or tilt, such as the Bausch & Lomb SofPort Advanced Optics IOL, is probably the best compromise, Dr. Lindstrom suggested. The B&L lens is designed to be aberration-free once implanted, he said.
“It performs better than a standard IOL with positive spherical aberrations in the average setting, and better than either the positive or negative spherical aberration lenses if there is decentration or tilting,” he said.
SofPort Advanced Optics IOLs are available in two different designs and materials, Dr. Lindstrom added.
The Florence Symposium is the Joint Meeting of Ocular Surgery News, the Italian Association of Cataract and Refractive Surgery, the Italian Society of Ophthalmology and the International Society of Refractive Surgery.