PRIMARY CATARACT Meaning and
Definition
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Primary cataract refers to a specific type of cataract that develops within the lens of the eye due to age-related changes or genetic factors, rather than from any underlying health conditions or external causes. A cataract is a clouding of the normally clear lens of the eye, causing blurry vision and eventual vision loss if left untreated. Primary cataract is the most common form of cataract and typically occurs in older individuals, although it can also occur in younger people due to genetic factors.
The lens of the eye is made up of primarily water and protein, with the proteins arranged in a precise way to keep the lens clear and allow light to pass through. Over time, the proteins can clump together and form a clouding effect, leading to the development of cataracts. Primary cataracts usually start small and gradually grow larger over time, affecting the clarity of vision.
Symptoms of primary cataract may include blurred or hazy vision, increased difficulty seeing at night, sensitivity to bright lights, fading or dulling of colors, and the need for brighter lighting to read or perform close-up tasks. If primary cataracts significantly impair vision and impact daily activities, surgery may be recommended to remove the cloudy lens and replace it with an artificial lens, known as an intraocular lens implant.
Regular eye examinations with an optometrist or ophthalmologist are essential in detecting and monitoring the progression of primary cataracts. Early detection can aid in managing the condition and preserving visual function through proper treatment options.
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One occurring independently of any other disease of the eye.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for PRIMARY CATARACT
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Etymology of PRIMARY CATARACT
The word "primary" in the term "primary cataract" comes from the Latin word "primarius", meaning "of first rank" or "first in importance". It refers to the fact that a primary cataract is the first or initial stage of the condition.
The word "cataract" has its roots in the Greek word "kataraktēs", which means "waterfall" or "down-rushing". This term was used to describe the white, opaque appearance of the crystalline lens when affected by the condition. Over time, "cataract" began to be specifically associated with the clouding or opacity of the lens within the eye.
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