Late postoperative opacification of MemoryLens hydrophilic acrylic intraocular lenses: case series and review.
| Autor: | Tehrani M; Department of Ophthalmology, Johannes Gutenberg-University, Mainz, Germany. tehrani@augen.klinik.uni-mainz.de, Mamalis N, Wallin T, Dick HB, Stoffelns BM, Olson R, Fry LL, Clifford WS |
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| Jazyk: | angličtina |
| Zdroj: | Journal of cataract and refractive surgery [J Cataract Refract Surg] 2004 Jan; Vol. 30 (1), pp. 115-22. |
| DOI: | 10.1016/S0886-3350(03)00461-9 |
| Abstrakt: | Purpose: To report clinical and spectrographic analyses of 2 explanted hydrophilic acrylic intraocular lenses (IOLs). Setting: John A. Moran Eye Center, Salt Lake City, Utah, USA, and Johannes Gutenberg-University, Department of Ophthalmology, Mainz, Germany. Methods: We report 6 cases of opacification of MemoryLens IOLs (Ciba Vision) that occurred approximately 2 years after implantation. The anterior and posterior surfaces of the IOLs had a white, frosted appearance, and the IOLs' interior looked brown, similar to the appearance of a brunescent cataract. Two of the IOLs were explanted because of a significant decrease in visual acuity. The IOLs were sent for further clinicopathologic analysis including scanning electron microscopy and energy dispersive x-ray spectroscopy (EDX). Results: Microscopic analysis revealed multiple, fine, granular deposits of various sizes on the surface of the lens optics. The EDX analysis showed the presence of calcium within the deposits. Conclusions: Our cases show that hydrophilic acrylic IOLs can opacify even years after implantation. Analysis of the explanted IOLs revealed calcification. |
| Databáze: | MEDLINE |
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