POLAR CATARACT Meaning and
Definition
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A polar cataract refers to a specific type of cataract, which is a condition affecting the lens of the eye. Specifically, this type of cataract is characterized by the presence of opacities or cloudy areas in the polar regions of the lens. The polar regions of the lens are the areas located near the front and back surfaces of the eye.
Typically, polar cataracts are congenital, meaning they are present from birth. They are usually bilateral, affecting both eyes, and can vary in size, shape, and location. These opacities may be small and insignificant, or they can be larger and cause significant vision impairment.
The exact cause of polar cataracts is not fully understood, although it is believed to be related to genetic factors. In some cases, they may also be associated with other ocular conditions or have a familial basis.
Individuals with polar cataracts may experience symptoms such as blurry or hazy vision, glare sensitivity, and difficulty seeing in low light conditions. Treatment for polar cataracts typically involves surgery to remove the affected lens and replace it with an artificial intraocular lens. The surgery aims to improve visual function and quality of life for affected individuals.
Overall, a polar cataract is a type of congenital cataract characterized by opacities in the polar regions of the lens, which can cause visual impairments requiring surgical intervention to restore vision.
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A capsular c. limited to a certain area over the anterior or posterior pole of the lens.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for POLAR CATARACT
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- polar cataracd
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Etymology of POLAR CATARACT
The word "polar" in the term "polar cataract" refers to the location of the cataract within the eye. "Polar" comes from the Latin word "polaris", meaning "of or pertaining to the pole". In this context, it refers to the central part of the eye where the cataract is formed.
The term "cataract" originated from the Greek word "katarraktēs", which means "waterfall". This term was used because when a cataract forms in the eye, it causes a cloudy or opaque appearance that can resemble the appearance of a white waterfall.
Therefore, the etymology of "polar cataract" can be understood as "the cloudy area located in the central part of the eye".
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