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Accommodating IOL shows good near vision results at 6 months
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ROME — Six months of follow-up with the Bausch + Lomb Crystalens HD accommodating IOL in 20 patients showed that the implant provides optimal quality of vision and accommodation amplitude of 1.5 D.
"All patients can read at least J3 at near, 65% read J2 and 20% read J1," Giorgio Marchini, MD, said at the annual joint meeting of Ocular Surgery News and the Italian Society of Ophthalmology.
"And yet, it doesn't move," he noted.
Ultrasound biomicroscopy studies showed that accommodation in the true sense does not take place. There are forward movements of the ciliary process, but minimal changes in anterior chamber depth. The lens moves only slightly, too slightly to produce the focal changes that allow near vision.
"If patients can read, this is not due to focal changes, but to an increase in spherical aberration," Edoardo Ligabue, MD, said. "The minimal arching effect of the lens that follows ciliary muscle contraction is sufficient to produce these aberrometric changes."
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