CHOROIDAL Meaning and
Definition
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Choroidal is an adjective that pertains to the choroid, which is the highly vascularized layer of tissue located in the eye, between the sclera (the white outer layer of the eye) and the retina (the light-sensitive layer at the back of the eye).
In terms of anatomy, choroidal refers to the structures or processes associated with the choroid. The choroidal blood vessels, for example, supply oxygen and nutrients to the retina, playing a crucial role in maintaining proper eye function. The choroidal layer itself contains many melanocytes that provide pigmentation to the eye, as well as numerous capillaries that help regulate blood flow.
The term choroidal is widely used in medical and ophthalmological contexts to describe various conditions, diseases, or treatments involving the choroid. For instance, choroidal melanoma is a type of eye cancer that begins in the cells of the choroid. Choroidal neovascularization is the abnormal growth of new blood vessels in the choroid, often associated with age-related macular degeneration. Choroidal rupture can occur due to trauma or injuries to the eye, leading to compromised vision. Treatments like photodynamic therapy or laser photocoagulation may be used to target the choroidal blood vessels in certain diseases.
In summary, choroidal relates to the choroid, encompassing the structures and processes within this important layer of the eye.
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Chorioid, relating to the chorioid, or choroid, coat of the eye.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for CHOROIDAL
Etymology of CHOROIDAL
The word "choroidal" is derived from the Latin term "chorioideus", which means "pertaining to the choroid". The Latin word "choroid" is an alteration of the Greek word "khoroeidēs", which combines "khōra" (meaning "skin" or "membrane") with "eidos" (meaning "form" or "shape"). Thus, the etymology of the word "choroidal" points to its relation to the choroid, a layer of tissue located in the eye.
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