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Cataracts are a leading cause of blindness. Viral video made by YouTube star Jimmy Donaldson, known as MrBeast, shows patients getting vision restored for free.
People who have a multifocal intraocular lens after their cataract is removed may be less likely to need additional glasses compared with people who have standard monofocal lenses. [2] People receiving multifocal lenses may experience more visual problems, such as glare or haloes (rings around lights), than with monofocal lenses. [2]
A phakic intraocular lens (PIOL) is an intraocular lens that is implanted surgically into the eye to correct refractive errors without removing the natural lens (also known as "phakos", hence the term). Intraocular lenses that are implanted into eyes after the eye's natural lens has been removed during cataract surgery are known as pseudophakic.
In 1987, JJV introduces the world’s first disposable soft contact lenses under the name ACUVUE Brand Contact Lenses. [3] AMO was spun off from Allergan in 2002. [5] In 2004, Advanced Medical Optics bought Pfizer’s surgical ophthalmology business for $450 million in cash. [6]
Cataract surgery is the removal of the natural lens of the eye that has developed a cataract, an opaque or cloudy area. [3] Over time, metabolic changes of the crystalline lens fibres lead to the development of a cataract, causing impairment or loss of vision.
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. Nepal is the only country in the Himalayan region performing more cataract surgery than the annual rate of new cataract blindness. [citation needed]
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