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A cataract is a cloudy area in the lens of the eye that leads to a decrease in vision of the eye. [1] [7] Cataracts often develop slowly and can affect one or both eyes. [1] Symptoms may include faded colours, blurry or double vision, halos around light, trouble with bright lights, and difficulty seeing at night. [1]
Cataracts are like death and (yup) taxes: Inevitable. At some point—usually as you enter middle age—most people develop this eye condition, which is a clouding of the eye’s lens that can ...
Cataract surgery, also called lens replacement surgery, is the removal of the natural lens of the eye that has developed a cataract, an opaque or cloudy area. [1]
[24] [12] However, it has been proven to be an ineffective and dangerous method of cataract therapy, which often leads to blindness or only partially restored vision. [24] The technique has mostly been replaced by extracapsular cataract surgery, including phacoemulsification. [25]
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Access to cataract surgery is very variable by country and region. Even in developed countries availability may vary significantly between rural and more densely populated areas. Cataract surgery is the removal of the natural lens of the eye that has developed a cataract, an opaque or cloudy area. [1]
Glassblower's cataract is an example of a heat injury that damages the anterior lens capsule among unprotected glass and iron workers. Cataract-like changes can occur in workers who observe glowing masses of glass or iron without protective eyewear for prolonged periods over many years.
The primary causes include post-cataract surgery, certain medications, and, less commonly, neurological or ophthalmological conditions. Post-cataract surgery is a common cause, as replacing the natural lens with a synthetic one increases exposure to blue light, leading to temporary blue-tinted vision. This effect usually resolves as the eye adapts.