PSEUDOPHAKIC
INTRAOCULAR LENSES
Cataract surgery replaces the opacified crystalline lens with an intraocular lens. These lenses are innocuous and biocompatible.
However, not all phakic intraocular lenses are the same. Choosing a specific lens will depend on whether the purpose of surgery is just to remove the cataracts. Refractive errors may also be corrected which requires different lenses. Lenses can be monofocal or multifocal in terms of their focusing distance (near, medium or far). Intraocular lenses that correct astigmatism are known as toric lenses.
The posterior capsule of the crystalline lens in which the intraocular lens is implanted becomes fibrous with time and causes a reduction of vision (commonly known as “dirty lenses”) although it is actually the posterior capsule on which the lens is supported that is affected. This situation has a quick simple solution with the use of YAG capsulotomy.