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This made visual rehabilitation after cataract surgery a more efficient, effective, and comfortable process. [107] Intracapsular cryoextraction was the favoured form of cataract extraction from the late 1960s to the early 1980s using a liquid-nitrogen-cooled probe tip to freeze the encapsulated lens to the probe.
Orthokeratology lens. Orthokeratology, also referred to as Night lenses, Ortho-K, OK, Overnight Vision Correction, Corneal Refractive Therapy (CRT), Accelerated Orthokeretology, Cornea Corrective Contacts, Eccentricity Zero Molding, and Gentle Vision Shaping System (GVSS), is the use of gas-permeable contact lenses that temporarily reshape the cornea to reduce refractive errors such as myopia ...
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'.
Early symptoms may include strong glare from lights and small light sources at night and reduced visual acuity at low light levels. [4] [5] Couching (lens depression) was the original form of cataract surgery and was used from antiquity. Chrysippus of Soli, a stoic Greek philosopher, provided the earliest account of it. [6]
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.
Cataract surgery could improve visual outcomes for people with AMD, though there have been concerns about surgery increasing the progression of AMD. A randomized controlled trial found that people who underwent immediate cataract surgery (within two weeks) had improved visual acuity and better quality of life outcomes than those who underwent ...
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