Until recently, patients undergoing cataract surgery received a monofocal, or single focus intraocular lens (IOL).
Monofocal IOLs implanted in both eyes generally provide excellent distance vision, but patients often need eyeglasses for near and intermediate vision.
Traditional intraocular lenses have a spherical optical design, meaning the front surface is uniformly curved from the center of the lens to its periphery.
Though a spherical IOL is relatively easy to manufacture, this design does not mimic the shape of the natural lens inside the eye, which varies in curvature from center to periphery.
Lee Center for Ocular Pharmacology, Eastern Virginia Medical School, Norfolk, Virginia.While available data showed that the lens definitely worked for the first year, it is at 24 months when we would expect to see true capsular fibrosis, he added.From the time Fluid Vision was under investigation, experts were in awe of this novel devices capability of harnessing the eyes natural environment to work for it.These are considered "premium" intraocular lenses because they have advanced features beyond those found in basic single vision IOLs that are covered by Medicare and other types of health insurance.During your preoperative exam and consultation, your cataract surgeon can help you choose the best IOL for your needs, as well as additional cataract surgery costs involved if you choose one of the following premium lens implants.
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Before the use of intraocular lenses, if you had cataracts removed, you had to wear very thick eyeglasses or special contact lenses in order to see after cataract surgery, since no device was implanted in the eye to replace the focusing power of the natural lens.