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What causes cloudy vision after cataract surgery?

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Individuals who have undergone cataract surgery sometimes experience clouding in vision, which can occur months or years later. This is caused by the outer lining wall of the cataract that remains in the eye, according to WebMD. The lining, or cataract capsule, is left to secure the new implant in place.

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If clouding has occurred after cataract surgery, normal vision can be restored through a painless office procedure called a YAG laser, explains WebMD. A small hole is opened in the original outer lining of the eye that is holding the new lens implant. While 98 percent of cataract surgeries are performed without complications and with a quick return to normal activities, individuals may feel mild pain immediately after the procedure, which is treated with over-the-counter pain relievers. Sensitivity to light and tearing of the eye are also common, but vision is typically improved within 24 hours. Within a month following surgery, most patients achieve maximum improvement upon receipt of new prescription glasses.

Most cataracts occur with age when the naturally clear lens of the eye begins to cloud, states WebMD. Cataract surgery removes or cleans out the cloudy lens through a process of liquefaction. If removed, the original lens is replaced with a clear plastic, silicone or acrylic replica called an intraocular lens. The surgery is performed in less than an hour on an outpatient basis.

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