Coloboma of optic nerve
Coloboma of Optic Nerve
Coloboma of Optic Nerve (pronunciation: kuh-loh-boh-muh of op-tik nurv) is a rare, congenital eye condition characterized by the absence of a portion of the tissue in the optic nerve.
Etymology
The term "coloboma" is derived from the Greek word "koloboma," meaning "curtailed" or "mutilated." The term "optic nerve" is derived from the Latin "optic," meaning "vision," and the Greek "neuron," meaning "nerve."
Definition
A coloboma is a gap or defect in the structure of the eye, which is present from birth. When this defect occurs in the optic nerve, it is known as a coloboma of the optic nerve. This condition can affect one or both eyes and can cause varying degrees of visual impairment, depending on the size and location of the coloboma.
Symptoms
Symptoms of coloboma of the optic nerve can vary greatly from person to person. Some individuals may have no symptoms, while others may experience significant visual impairment. Common symptoms include blurred vision, reduced visual acuity, and strabismus (misalignment of the eyes).
Causes
Coloboma of the optic nerve is a congenital condition, meaning it is present from birth. It occurs when there is a disruption in the normal development of the eye during pregnancy. The exact cause is unknown, but it is thought to be related to genetic factors.
Treatment
There is currently no cure for coloboma of the optic nerve. Treatment is focused on managing symptoms and preventing complications. This may include the use of corrective lenses or surgery to correct strabismus.
Related Terms
External links
- Medical encyclopedia article on Coloboma of optic nerve
- Wikipedia's article - Coloboma of optic nerve
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