Cataract

  • 101nuclear cataract — noun a cataract that affects just the dense inner part of the lens …

    Wiktionary

  • 102Poikiloderma atrophicans with cataract — Better known as the Rothmund Thomson syndrome, this is an hereditary disease characterized by progressive degeneration (atrophy), scarring and abnormal pigmentation of the skin together with stunting of growth, {{}}baldness, cataracts, depressed… …

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  • 103black cataract — a black or dark colored opacity in the lens, occurring as part of a senile nuclear sclerotic cataract …

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  • 104blue cataract — blue dot cataract 1. a small, round developmental opacity that appears white, brown, or blue; it is common in the periphery of the cortex and occasionally moves into the axial zone of the lens; it rarely affects vision. Called also cerulean c.,… …

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  • 105contusion cataract — a cataract due to shock or to injury of the eyeball …

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  • 106cortical cataract — 1. developmental punctate opacity, white or light blue in color, commonly found in the cortex of the lens; this is present in most lenses and there are multiple ones as a person ages, but they rarely affect vision. 2. the most common type of… …

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  • 107diabetic cataract — a rare, usually bilateral, opacity shaped like a snowflake, affecting the anterior and posterior cortices of young diabetics. Sometimes it can be reversed when the blood glucose is brought under control, but in most cases it progresses rapidly to …

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  • 108electric cataract — a cataract occurring after an electric shock, especially to the head. Anterior subcapsular cataracts may form and develop within days after a severe shock; slowly developing or stationary opacities may follow a shock not on the head …

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  • 109galactosemic cataract — a cataract commonly observed in infants with galactosemia. The opacities look like oil droplets, are bilateral, and are zonular or nuclear …

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  • 110heterochromic cataract — a secondary, posterior cortical cataract symptomatic of heterochromic cyclitis; failing vision is often the first symptom …

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  • 111intumescent cataract — a mature cataract that progresses; the lens becomes swollen from the osmotic effect of degenerated lens protein, and this may lead to secondary angle closure (acute) glaucoma …

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  • 112juvenile cataract — a cataract in a child under nine years old; such cataracts are usually congenital or traumatic …

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  • 113lamellar cataract — a concentric opacity, broad or narrow, usually consisting of powdery white dots, affecting one lamella or zonule of an otherwise clear lens. This is the most common type of congenital cataract, and causes include hypocalcemia, hypoglycemia,… …

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  • 114mature cataract — a cataract that produces swelling and opacity of the entire lens. Most cataracts are removed before maturity …

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  • 115membranous cataract — a cataract formed of a collapsed, flattened capsule with little or no cortex or epithelium …

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  • 116morgagnian cataract — a mature cataract in which most of the cortex has become opaque and liquefied, so that the nucleus moves freely within the lens …

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  • 117polar cataract — a type of capsular cataract, usually disk shaped; those in anterior locations are more common, and those in posterior locations reduce visual acuity more often …

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  • 118postinflammatory cataract — a secondary cataract due to inflammation …

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  • 119presenile cataract — a subcapsular senile cataract in a person under 40 …

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  • 120primary cataract — a cataract that develops independently of any other disease …

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