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New IOL material allows power adjustment post-implantation
SAN FRANCISCO — A new type of lens material soon to undergo clinical trials has the potential to allow adjustment of IOL power after implantation in the eye, according to David Chang, MD. The advanced polymer technology will let surgeons correct virtually “any kind of postoperative refractive error,” he said during a presentation at Rome 2002.
The lens material, developed by Calhoun Vision, contains photoreactive monomers embedded in a silicone matrix. The monomers in the lens optic can be selectively polymerized after implantation by irradiation with ultraviolet light. This results in a controlled reshaping of the optic.
Animal studies have shown the change in power to be predictable and consistent, with good optical results, Dr. Chang said.
The technology could overcome some of the current limitations of multifocal IOLs, Dr. Chang said. He also said the technology may represent the optimal platform for wavefront-based correction.
For more details on the lens material and its potential uses, see the July 1 print edition of Ocular Surgery News.