Intraocular lens and method of retaining in place

摘要

Intraocular lenses of non-rigid material are disclosed. In one embodiment, an intraocular lens of HEMA plastic or other soft plastic is cut to a size that is small for emplacing but fills the capsular bag of an eye after it has been emptied of its natural contents. The softening and expanding of a hydrophilic lens is caused by the aqueous humor uptake into the dry lens from the capsule environment. Means such as concentric grooves are also disclosed which engage the rough interior walls of the capsular bag to position and retain the lens in place.