Treatment depends on the type of coloboma. Treatment of a coloboma aims to correct the specific issue affecting it and to improve vision. These tests help to check the effect coloboma has on vision. Later on, other tests like the visual acuity test may be performed. He/she will use an ophthalmoscope to check the inside of an individual’s eye.
Coloboma pupil professional#
Generally, there may be increased sensitivity to light and loss of visionĪn eye care professional will conduct a thorough eye examination.An individual with a coloboma that affects the front part of the eye may have issues with vision.Chorioretinal coloboma – There is no vision in a specific location.Macula or optic nerve coloboma – The individual will have reduced vision.Eyelid coloboma – There will be a bent, defect or notch in the eyelid.Traumatic iris coloboma can occur after an accident where the iris is ruptured or after glaucoma surgery Iris coloboma – The pupil has the appearance of a cat’s eye.Signs & SymptomsĬoloboma symptoms depend on the type. Other causes include trauma to the eye and eye surgery. Sometimes, a coloboma may be caused by the use of certain drugs or infections during pregnancy. It could also be a result of a genetic syndrome like the cat eye syndrome which is a rare disorder. Optic nerve coloboma – The optic nerve has space, reducing visionĪ coloboma may be a genetic disease, passed on by parents.Chorioretinal coloboma – A missing part of the retina.Eyelid coloboma – Part of the eyelid (upper and lower) is absent.Macula coloboma – The macula fails to develop as it should.Uveal or Iris coloboma – Coloboma affects the iris causing the appearance of a keyhole or cat-eye.Lens coloboma – A part of the lens is missing.The degree of visual impairment caused by a coloboma depends on which structures of the eye are affected. Also, vision impairment caused by a coloboma may not be evident at birth. Both eyes are affected in the same way or differently. It can be unilateral (in one eye) or bilateral (in both eyes). Failure to this is what gives rise to a coloboma.Ī coloboma can be small or large. The choroidal fissure is supposed to close by the seventh week of pregnancy. A choroidal fissure develops at the base of the stalks which ultimately forms the eye. Coloboma is a Greek word that means ‘defect,’ ‘mutilated,’ or ‘curtailed.’ The eye of a fetus develops rapidly during a pregnant woman’s first trimester. The part that fails to develop is usually on the lower part of the eye. A coloboma is a congenital condition where one or more structures in or around the eye fail to develop.
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