Researchers in Spain have developed a hand-held device to help patients with cataracts visualize how the world would look depending on the type of artificial lens they get implanted.
The device, dubbed the simultaneous vision simulator or simply SimVis, allows patients to experience an implanted lens’ effect on their vision before surgery, according to a statement. There has been a proliferation of intraocular lenses in the past decade to replace lenses clouded by cataracts. Some correct only far vision, requiring patients to wear glasses to correct their near vision, while multifocal lenses correct both near and far vision, but with some image quality and contrast tradeoffs, according to the statement.
“Currently, the decision on which intraocular lens is implanted during cataract surgery is typically based on the explanations and experience of the surgeon,” said Carlos Dorronsoro, first author of the paper, in the statement. But because it’s difficult to translate a surgeon’s descriptions into an imagined visual experience, it is difficult for patients to make the decision, he said. Click to read more
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