When you elect to have cataract surgery, you get to choose from several varieties of artificial lenses called intraocular lenses (IOL) that will replace your clouded lens. Wouldn’t it be nice to get a preview of what your new vision will be like after your cataract surgery? Thanks to a new technological device developed in Spain, your wish is now a reality. The simultaneous vision simulator, or SimVis, will give you a glimpse of your new eyesight on the other side of surgery.
If you are considering a monofocal lens (which creates sharp vision for far objects but blurred vision for close objects), the SimVis can simulate how the world will look through the monofocal lens so you can feel confident in your choice. You may be considering a multifocal lens (which focuses near and far objects on the retina, but with lower image quality and contrast). The SimVis uses an optoelectronic turntable lens that can change shape when electric current is applied. The shape of the lens can be switched quickly to simulate the clear distance vision and blurred close vision of a monofocal lens, as well as simulating the loss of image quality and contrast in a multifocal lens.
"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, one of the head researchers. "But it is difficult for patients to imagine the new visual experience provided by some of these lenses, therefore, it is very difficult to make the decision" (Source: Science Daily).
Sometimes, having choices can seem burdensome instead of empowering. The SimVis could be instrumental in increasing patient confidence and decreasing anxiety before surgery. Even though cataract surgery is one of the most successful surgeries performed today, patients may still second-guess themselves and wonder if they have made the correct lens choice. With SimVis, these worries can be a thing of the past.