A coloboma is a congenital eye abnormality that occurs during fetal development. It is characterized by a missing piece of tissue in one or more structures of the eye, such as the iris, retina, choroid, or optic disc. This condition can affect one or both eyes and may lead to various visual impairments depending on the severity and location of the coloboma.
There are several synonyms or alternative terms used to describe coloboma. One common synonym is "ocular coloboma," which emphasizes the eye-related nature of the condition. Another term is "iris coloboma," which specifically refers to the absence of tissue in the iris, the colored part of the eye. Additionally, "retinal coloboma" is used when the missing tissue is in the retina, the light-sensitive layer at the back of the eye.
Coloboma can also be referred to as "choroidal coloboma" when the defect is in the choroid, the vascular layer beneath the retina. Another synonym is "optic disc coloboma," which indicates the absence of tissue in the optic disc, the point where the optic nerve enters the eye.
It is important to note that coloboma is a medical condition that requires proper diagnosis and management by healthcare professionals. The visual impairments associated with coloboma can vary widely, ranging from mild to severe, and may impact visual acuity, depth perception, and peripheral vision. Regular eye examinations and appropriate interventions, such as corrective lenses or surgical procedures, may be recommended to optimize visual function and address any associated complications.