Secondary closure of neodymium:YAG laser posterior capsulotomy.

Department of Ophthalmology, University of Tokyo School of Medicine, Tokyo, Japan.
Journal of Cataract and Refractive Surgery (Impact Factor: 2.53). 11/2001; 27(10):1695-7. DOI: 10.1016/S0886-3350(01)00782-9
Source: PubMed

ABSTRACT A 67-year-old man reported reduced vision after cataract surgery and neodymium:YAG (Nd:YAG) laser posterior capsulotomy. The diagnosis was complicated due to severe glistenings within the optic of an acrylic foldable intraocular lens (IOL), proliferation of lens epithelial remnants over the capsulotomy opening, and presumed vitreous opacity. Although IOL exchange surgery was considered, a second Nd:YAG laser intervention successfully removed the proliferated lens materials and restored the visual acuity. The glistenings were not the cause of the reduced vision.

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    ABSTRACT: To evaluate the influence of a neodymium:YAG (Nd:YAG) laser capsulotomy on the morphology and development of regeneratory opacification of the remaining surrounding posterior capsule. Department of Ophthalmology, Medical School, University of Vienna, Vienna, Austria. Standardized digital retroillumination photographs were taken immediately before and after Nd:YAG laser capsulotomy and at 1 week, 6 months, and 1 to 3 years in 38 eyes of consecutive patients. Changes in regeneratory posterior capsule opacification (PCO) and opacification around the capsulotomy opening were evaluated. The influence of the type of intraocular lens (IOL) material and design (acrylic, n = 8; hydrogel, n = 8; silicone open loop, n = 11; silicone plate haptic, n = 6; poly(methyl methacrylate) [PMMA], n = 5) was assessed. The state of the anterior vitreous surface was examined at the slitlamp in all eyes. In 8 of 17 eyes with a silicone IOL, reduced regeneratory PCO was observed. Massive pearl formation on the margin of the Nd:YAG capsulotomy was typical with silicone IOLs (8 eyes) but also occurred with PMMA IOLs. Eyes with acrylic IOLs had no change in regeneratory PCO after the capsulotomy. Three of 8 eyes with hydrogel IOLs had complete closure of the posterior capsulotomy opening. Neodymium:YAG laser capsulotomy induced changes in the development and morphology of regeneratory PCO. Silicone and PMMA IOLs led to significant pearl formation on the capsulotomy margin, often combined with a reduction of peripheral regeneratory PCO (silicone). Hydrogel IOLs led to a higher incidence of reclosure of the Nd:YAG capsulotomy opening.
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    ABSTRACT: A descriptive case series of five patients identified either opportunistically or from a retrospective review of the laser register is presented. All underwent cataract surgery between 1995 and 1999 and required initial Nd:YAG laser posterior capsulotomy 15-30 months after surgery. They subsequently developed reclosure of the capsulotomy, necessitating repeat laser capsulotomy 11-82 months later. One patient, who received a hydrogel intraocular lens, required a third capsulotomy after a further 12 months. The rate of repeat Nd:YAG laser capsulotomy in our unit was 0.31%.
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