sclerotic nucleus of lens

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• senile nuclear sclerotic cataract — an increasing hardening of the nucleus of the lens, with the opacity appearing brown or black and the lens becoming inelastic and unable to accommodate; the opacity is usually bilateral, begins between ages 50 and 60, and progresses slowly …   Medical dictionary

• Cataract — A clouding of the lens of the eye. The normally clear aspirin sized lens of the eye starts to become cloudy. The result is much like smearing grease over the lens of a camera. It impairs normal vision. There are many causes of cataracts including …   Medical dictionary

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• body — 1. The head, neck, trunk, and extremities. The human b., consisting of head (caput), neck (collum), trunk (truncus), and limbs (membra). 2. The material part of a human, as distinguished from the …   Medical dictionary

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• eye disease — Introduction  any of the diseases or disorders that affect the human eye (eye, human).       This article briefly describes the more common diseases of the eye and its associated structures, the methods used in examination and diagnosis, and the… …   Universalium

• cataract — n. any opacity in the lens of the eye that results in blurred vision. Cataracts may be congenital or acquired. The latter may be due to metabolic disease (such as diabetes), direct or indirect injury to the lens, or prolonged exposure of the eye… …   The new mediacal dictionary

• History of Medicine —     History of Medicine     † Catholic Encyclopedia ► History of Medicine     The history of medical science, considered as a part of the general history of civilization, should logically begin in Mesopotamia, where tradition and philological… …   Catholic encyclopedia

• Artery — A vessel that carries blood that is high in oxygen content away from the heart to the farthest reaches of the body. Since blood in arteries is usually full of oxygen, the hemoglobin in the red blood cells is oxygenated. The resultant form of… …   Medical dictionary