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Cataract is globally the most common cause of blindness in people older than 50 years. It impairs vision and lowers quality of life. Improvements in vision help with daily activities, including work productivity and education. Cataract surgery reduces risk of falling and of dementia.
[citation needed] At that time, the second and third leading etiologies of blindness after cataracts were aphakia due to the loss of these thick glasses, and failed cataract surgery. [4] In contrast, in 2017, over 600,000 cataract surgeries were performed in over 16 countries [3] and over 98 percent were done with microsurgery and lens implants ...
The IAPB Vision Atlas is a website resource providing information on factors affecting vision loss relevant to policy makers, health planners, eye health professionals, NGOs, patient groups and advocates. First published in 2016, [13] and launched at the 10th general assembly in Durban, South Africa in October of that year. [30]
Complications after cataract surgery are relatively uncommon. Posterior vitreous detachment (PVD) may occur but does not directly threaten vision. [23] Some people develop a posterior capsular opacification (PCO), also called an after-cataract. This may compromise visual acuity, and can usually be safely and painlessly corrected using a laser.
Cataract surgery in small animals such as dogs and cats is a routine ophthalmic procedure with a success rate of around 90%, and is usually better for eyes with relatively recent cataract development. The presence of other ocular problems may reduce the success rate. Procedures are similar to those for humans.
Posterior capsular opacification, also known as after-cataract, is a condition in which months or years after successful cataract surgery, vision deteriorates or problems with glare and light scattering recur, usually due to thickening of the back or posterior capsule surrounding the implanted lens, so-called 'posterior lens capsule opacification'.
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