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Central hole maintains natural aqueous dynamics after implantation of posterior chamber phakic lens
MILAN — Five-year follow-up of a modified posterior chamber implantable Collamer lens with a central hole showed a high safety profile due to the maintenance of natural eye aqueous dynamics.The Visian ICL V4 (STAAR Surgical) was found in animal experiments to improve the aqueous humor perfusion on the anterior surface of the crystalline lens, preventing the formation of secondary cataract. Clinical studies were performed between 2007 and 2010, and in 2011 the lens received the CE mark.