What is eyelid coloboma?

An eyelid coloboma is a congenital full-thickness defect of the eyelid margin seen in about 1 in 10000 births and may also involve different structures of the eye: eyelids, iris, lens, ciliary body, choroid, retina, or optic nerve.[1]

How does coloboma affect the eye?

People with coloboma may also have other eye abnormalities, including clouding of the lens of the eye (cataract ), increased pressure inside the eye (glaucoma ) that can damage the optic nerve, vision problems such as nearsightedness (myopia ), involuntary back-and-forth eye movements (nystagmus), or separation of the …

Can coloboma be corrected?

However, there is currently no medication or surgery that can cure or reverse coloboma and make the eye whole again. Treatment consists of helping patients adjust to vision problems and make the most of the vision they have by: Correcting any refractive error with glasses or contact lenses.

What is the most common location of a lens coloboma?

Eyelid colobomas result in a full-thickness defect of the eyelid: although the coloboma may occur anywhere on the eyelids, the most common site is at the junction of the medial and middle third of the upper eyelid.

What does a coloboma look like in the eye?

A coloboma is a gap in the structure of your eye. This term applies to almost any kind of cleft in the eye. Eyelid. A part of the upper or lower lid is missing. This can look like a notch, or it can have a ragged edge. Macula. This structure in the back of your eye is responsible for full-color vision.

Where does the word coloboma come from in medical terms?

Coloboma comes from a Greek word which means “curtailed”. It is used to describe conditions where normal tissue in or around the eye is missing from birth. To understand coloboma, it is useful to be familiar with the normal structure and appearance of the eye, and the terms related to the different parts of the eye.

When do Baby’s eyes close after a coloboma?

During pregnancy, a baby’s eyes grow around a central seam, and after about seven weeks, that seam should close. When it doesn’t, a coloboma forms.

What happens when a cyst is found in a coloboma?

coloboma with a cyst (microphthalmia with cyst): results from the proliferation of the embryonic retina with potential extrusion of the vitreous posteriorly into the cyst (thus microphthalmia). The cyst may become discontinuous from the eye, be larger than the eye, and may cause proptosis.