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T. Iwase; Investigation of preventing postoperative posterior capsule opacification . Invest. Ophthalmol. Vis. Sci. 2004;45(13):359.
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© ARVO (1962-2015); The Authors (2016-present)
Purpose: We have investigated to explore the crucial factor on the posterior capsule opacification (PCO) after cataract surgery, in this study, especially focusing on the characteristics on the acryl–made intraocular lens(IOL). Methods: We performed phacoemulsification and aspiration, and inserted intraocular lens(IOL) to each 20 patients with the same grade cataract in both eyes. The IOLs inserted were MA60BM, VA60CA, AR40 and AR40e, respectively. Under the same condition for the record, we took four cross sectional images (at 0 degree, 45 degrees, 90 degrees, and 135 degrees) with anterior segment analysis system (EAS1000). The average density values from 4 cross sectional images were calculated by densitometric analysis, and mutually compared 3 months postoperatively. Results:The PCO was strongly associated with MA60BM implanted eyes (11.7cct), and increased with the following IOL implanted as AR40e (15.9cct), VA60CA (19.9cct) or AR40 (21.7cct). The images of EAS1000 in MA60BM showed that posterior capsule and IOL contacted rapidly after surgery than in any other IOL, and the interspace was comparatively small in many cases. The less migration of lens epithelial cells possibly accounts for the less occurrence of PCO in MA60BM–implanted eyes. In addition, the shape in the optical portion of IOL might play an important role for the PCO, on the ground that AR40 led to less PCO than AR40e. Conclusions: In order to develop the new IOL preventing the PCO, we should consider both the material and the shape which constitutes IOL.
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