Coloboma - National Eye Institute
2024年11月27日 · Coloboma is a condition where some tissue is missing in a part of the eye, like the iris, pupil, lens, retina, or another part of the eye.
Coloboma - EyeWiki
Coloboma is derived from the Greek koloboma, meaning mutilated, curtailed, or with defect. The term is used to describe ocular defects of the eyelids, iris, lens, ciliary body, zonules, choroid, retina or optic nerve. It is typically located in the inferonasal quadrant of the involved structure and is often associated with microphthalmia.
What Is a Coloboma? - American Academy of Ophthalmology
2024年9月10日 · A coloboma is a condition where normal tissue in or around the eye is missing at birth. During the first three months of a pregnancy, the fetus’s eye grows quickly. Normally there is a small gap at the bottom of a developing fetus’s eye …
What Is a Coloboma? Types, Symptoms, and Treatments - WebMD
2024年9月12日 · There are six different types of colobomas: Chorioretinal colobomas occur when part of the retina is missing. The retina is the layer of cells lining the back of...
Coloboma: Types, Symptoms, and Associated Conditions - Vision …
2024年10月23日 · The retina lines the back wall inside your eye. It senses light and relays signals to your brain so you can see. Chorioretinal coloboma typically doesn’t cause vision problems.
Coloboma: Causes, Treatment, and More - Verywell Health
2024年7月31日 · Retina: The retina senses light and creates electrical impulses sent to the brain via the optic nerve. Microphthalmia (small eye) is often linked with very large colobomas of the retina. Choroid: The blood vessel layer of the eye is located between the retina and the sclera (the white outer coat that surrounds the iris).
Types of Coloboma - National Eye Institute
2021年12月21日 · Uveal coloboma can affect 2 different parts of the eye: the iris and the retina. When uveal coloboma affects the iris, it’s called iris coloboma. The iris is the colored part of your eye that surrounds your pupil — the opening in the middle of your eye where light enters the eye.
Coloboma - American Association for Pediatric Ophthalmology …
WHAT IS A RETINA OR OPTIC NERVE COLOBOMA? A small or large problem with development may occur in the deeper parts of one or both eyes [See figure 2]. 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).
Coloboma: MedlinePlus Genetics
Large retinal colobomas or those affecting the optic nerve can cause low vision, which means vision loss that cannot be completely corrected with glasses or contact lenses. Some people with coloboma also have a condition called microphthalmia .
Ocular coloboma—a comprehensive review for the clinician | Eye …
2021年3月21日 · Prophylactic laser retinopexy to the border of choroidal coloboma appears to be an attractive option for reducing risk of coloboma-related retinal detachment. However, a majority of the...