An eye with an optic nerve or retina coloboma can be smaller than normal.įig. This can involve the retina (inner layer lining the back of the eye responsible for sight) and/or the optic nerve (which connects the eye to the brain). WHAT IS A RETINA OR OPTIC NERVE COLOBOMA?Ī small or large problem with development may occur in the deeper parts of one or both eyes.
These problems may need treatment with glasses and/or patching. This may cause the lens to have a funny shape, which can cause refractive error (problems focusing due to a need for glasses) and/or amblyopia (weakness in vision, lazy eye). WHAT IS A LENS COLOBOMA?Ī lens coloboma is when the parts of the eye that hold the lens in place (the ciliary body and zonules) are small or missing in places. Contact lenses that change eye color may be used to cover the iris coloboma and help with how it looks and problems with light sensitivity. Some will have light sensitivity because of a larger pupil (dark spot in the center of the colored part of the eye). Many times the vision may be normal in those with an iris coloboma if there are no other eye problems. The eye is often treated with extra tear drops and tear ointments to prevent drying, and may require surgery to close the opening in the eyelid. The opening in the eyelid will leave part of the cornea (clear front part of the eye) uncovered, which can cause severe dryness, infections, and scarring. WHAT problems can COLOBOMA OF THE EYELID cause to the eye? In this syndrome patients have sunken cheeks, slanted appearance of eye, and a small lower jaw. A syndrome that may be seen with coloboma of the lower lid is called Treacher Collins syndrome. WHAT OTHER medical problems are seen WITH A COLOBOMA OF THE EYELID?Įyelid coloboma can be seen with Goldenhar syndrome, which is a group of medical problems that includes: a growth on the eye (limbal dermoid), problems with eye movement ( Duane syndrome), ear problems, or spine problems. Eyelid colobomas can occur during the third or fourth month or during the sixth or seventh month of pregnancy. It most commonly affects the upper eyelid. A coloboma in the eyelid can vary from a small notch to near total absence of the eyelid. It is when all or part of the eyelid is missing. WHAT TYPES OF COLOBOMAS OCCUR IN THE EYE?Ĭolobomas may be seen in the iris (the colored part of the eye), lens (clear focusing part in the middle of the eye), retina (inner lining of the back wall of the eye), or optic nerve (nerve that connects the eye to the brain). A referral to a genetics specialist may be helpful for those with coloboma. There are many other syndromes and medical problems that can be seen with colobomas of the eye. CHARGE syndrome has been linked with a mutation in the CHD7 gene, which can show on a blood test. Coloboma can be seen with heart problems, problems with development of the nose and sinuses, slow growth and development, genital or urinary tract problems, or problems with ear development (CHARGE syndrome).
WHAT MEDICAL PROBLEMS ARE seen WITH COLOBOMA?Ĭoloboma of any part of the eyeball or eyelid can happen on its own or it can occur with other problems that affect the rest of the body. IS COLOBOMA HERITABLE?Ĭoloboma can be inherited (run in families) or can occur spontaneously (where no one else in the family is affected). See In the photo there is a funny shape to the upper eyelid. 1: Coloboma is a problem with the formation of either the eyelid or the eye.
A coloboma happens when tissues that are supposed to become the eyeball and the eyelids do not connect or form well.įig. In a coloboma, parts of the eyeball or the eyelid may be small, underdeveloped or missing. von Noorden Young Investigator AwardĪ coloboma is a problem with the formation of either the eyelid or the eyeball that is present since birth.
0 kommentar(er)
