The absence of the lens from the eye.
Aphakia may be congenital, may result from surgery (for example, cataract surgery), or may be due to a penetrating injury.
Aphakia causes severe loss of focusing in the affected eye and requires correction by implanting a lens or with contact lenses or glasses.
Absence of the lens of the EYE.
n. absence of the lens of the eye: the state of the eye after a cataract has been removed when no intraocular lens has been inserted. —aphakic adj.
Displacement of the crystalline lens from its normal position in the eye. Lens dislocation is almost always caused by an injury that ruptures the fibres connecting the lens to the ciliary body. In Marfan’s syndrome, these fibres are particularly weak and lens dislocation is common.A dislocated lens may produce severe visual distortion or double vision, and sometimes causes a form of glaucoma if drainage of fluid from the front of the eye is affected. If glaucoma is severe, the lens may need to be removed. (See also aphakia.)... lens dislocation
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