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| Bifocal Contact Lenses A discussion of bifocal contact lenses such as Acuvue Bifocal, Acuvue Oasys for Presbyopia, Air Optix Aqua Multifocal, Focus Dailies Progressives, Focus Progressive, Frequency 55 Multifocal, Hydrocurve II Bifocal, Proclear Multifocal, PureVision Multi-Focal, SofLens Multi-Focal ... |
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What are simultaneous bifocal contact lenses? I read an article about them, but didn't quite get how they worked.
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These are like progressive eye-glasses (which I love) From All about vision: http://www.allaboutvision.com/contacts/bifocals.htm#aspheric "These multifocal contact lens designs work more like progressive eyeglass lenses, where the different prescriptive powers are blended across the lens. Unlike eyeglasses, however, aspheric contact lenses are simultaneous vision lenses, so your visual system must learn to select the proper prescription for the moment. This is the only type of multifocal contact lens that can be described as "progressive." It's also concentric, like the concentric ring designs, and it has become the most popular type of multifocal contact lens." |
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Thank you for that good answer to Tiger's question. I appreciate your providing the link, and then summarizing what it says. That gives readers the option of following the link or not. Keep up the good work. |
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This "learning to select the proper prescription for the moment." Is it hard to do?
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I don't know the answer to your question Eldrad, but that sure is a cool picture you put there.
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Now, about that "selecting the proper prescription" bit, does anyone here know how that works? |
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