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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]
Lens and cataract procedures are commonly performed in an out-patient setting; in the United States, 99.9% of lens and cataract procedures were done in an out-patient setting by 2012. [ 51 ] Topical , sub-tenon , peribulbar , or retrobulbar local anaesthesia is generally used, usually causing little or no discomfort.
Effective IOL implants also eliminate the need for glasses or contact lenses post-surgery for most patients. [5] Cataracts will not appear or return, as the lens has been removed. The disadvantage is that the eye's ability to change focus (accommodate) has generally been reduced or eliminated, depending on the kind of lens implanted. [citation ...
Posterior capsular rupture, a tear in the posterior capsule of the natural lens, is the most-common complication during cataract surgery. [8] Posterior capsule rupture can cause lens fragments to be retained, corneal oedema, and cystoid macular oedema; it is also associated with increased risk of endophthalmitis and retinal detachment.
In 1976, AMO focused its business in the early development of intraocular lenses for cataract patients. In 1981, Johnson & Johnson acquires Frontier. [3] In 1983, American Medical Optics, the Santa Ana eye product division of American Hospital Supply Corp., began to manufacture the tissue lens. [citation needed]
In 1967, Charles Kelman introduced phacoemulsification, which uses ultrasonic energy to emulsify the nucleus of the crystalline lens and remove cataracts by aspiration without a large incision. This method of surgery reduced the need for an extended hospital stay and made out-patient surgery the standard. [8]
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