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Related to nuclear sclerosis: cortical cataract
increased refractivity of the central portion of the lens of the eye. See: nuclear cataract.
Farlex Partner Medical Dictionary © Farlex 2012
An increase in the refractive index of the eye's crystalline lens, which culminates in the development of nuclear cataracts. Before the cataract fully opacifies, the patient's near vision may improve, a phenomenon known as senopia or second sight.
See also: sclerosis
Medical Dictionary, © 2009 Farlex and Partners
nuclear sclerosisHardening of the central part of the internal crystalline lens of the eye. This is commonly a stage in the development of CATARACT and may lead to unexpected short-sightedness (index MYOPIA) so that reading may, for a time, be possible without glasses.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005