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Traditionally when patients need cataract surgery, an intraocular lens is surgically implanted into the eye to replace the patient’s natural lens inside the eye that has become cloudy and obstructs vision. When it comes to selecting the appropriate lens for implantation, the decision is typically made by the surgeon based on the condition of the patient’s lens. This often leaves patients in the dark when it comes to making a decision on surgery, and what lens is appropriate for their condition.
Spanish researchers, however, have now created a hand-held device called a simultaneous vision simulator, or SimVis, that enables patients to actually experience how different lenses would affect their vision simply by looking through the device.
Created at the Institute of Optics in Madrid, the SimVis uses an optoelectronic tunable lens that changes shape in response to an applied electric current, according to The Optical Society, which published the Spanish researchers' work in its journal Optica. Click to read more