nuclear sclerosis

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Related to nuclear sclerosis: cortical cataract

nu·cle·ar scle·ro·sis

increased refractivity of the central portion of the lens of the eye. See: nuclear cataract.

nuclear sclerosis

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

nuclear sclerosis

Hardening 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.


an induration or hardening, especially hardening of a part from inflammation and in disease of the interstitial substance. The term is used chiefly for such a hardening of the intestine in the dog, hardening of the nervous system due to hyperplasia of the connective tissue or for hardening of the blood vessels.

arteriolar sclerosis
nuclear sclerosis
increased density of the lens causing a gray-blue haze; seen as a normal feature of aging in dogs. This is often mistaken as cataract formation, but seldom is a cause of blindness.
References in periodicals archive ?
Preoperative Grading of Nuclear Sclerosis: Majority of the patients had Nuclear Sclerosis Grade 2 (55%).
There was no statistical significance in the distribution of nuclear sclerosis among the groups.
Preoperatively, the nuclear sclerosis was graded (11) 55% of patients had a nuclear sclerosis of grade 2, 26% had nuclear grade 1 and 19% did not have nuclear sclerosis.
Table 6 Within and 1-mg 4-mg including 6 Months (N=15) (N=19) Lenticular initiation/progression 1 2 Nuclear Sclerosis Posterior Subcapsular Cataract 0 2 Cataract Surgery 0 1

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