Iris Coloboma
![Iris coloboma with a bridging iris tissue](https://www.vagelos.columbia.edu/sites/default/files/styles/cola_media_200/public/media/images/2022-03/iris-coloboma.jpeg?itok=twZhmA0N 200w, https://www.vagelos.columbia.edu/sites/default/files/styles/cola_media_260/public/media/images/2022-03/iris-coloboma.jpeg?itok=JBcZaMjR 260w, https://www.vagelos.columbia.edu/sites/default/files/styles/cola_media_320/public/media/images/2022-03/iris-coloboma.jpeg?itok=wgekrDUA 320w, https://www.vagelos.columbia.edu/sites/default/files/styles/cola_media_400/public/media/images/2022-03/iris-coloboma.jpeg?itok=LGoDfVnS 400w, https://www.vagelos.columbia.edu/sites/default/files/styles/cola_media_1600/public/media/images/2022-03/iris-coloboma.jpeg?itok=aqM3NPdA 450w, https://www.vagelos.columbia.edu/sites/default/files/styles/cola_media_520/public/media/images/2022-03/iris-coloboma.jpeg?itok=5kvOhAJz 520w, https://www.vagelos.columbia.edu/sites/default/files/styles/cola_media_640/public/media/images/2022-03/iris-coloboma.jpeg?itok=GwtyOVBu 640w, https://www.vagelos.columbia.edu/sites/default/files/styles/cola_media_800/public/media/images/2022-03/iris-coloboma.jpeg?itok=g50izx-j 800w, https://www.vagelos.columbia.edu/sites/default/files/styles/cola_media_1040/public/media/images/2022-03/iris-coloboma.jpeg?itok=2vBJcMPi 1040w, https://www.vagelos.columbia.edu/sites/default/files/styles/cola_media_1280/public/media/images/2022-03/iris-coloboma.jpeg?itok=cSynjRoQ 1280w)
Clinical Features
Symptoms:
- Maybe asymptomatic
- Blurry vision
- Glare
Signs:
- Typically located inferonasally
- Appears as notches in iris or "keyhole pupils"
- May or may not be associated with chorioretinal coloboma
- Absence of zonules in the area of a ciliary body coloboma results in lens notching (coloboma)
Other associated syndromes may include:
- Autosomal dominant uveal coloboma
- Cat eye syndrome
- Edwards' syndrome
- Patau's syndrome
- Linear nevus sebaceous syndrome.
Management
- Supportive with sunglasses, tinted contact lens or contact lens with artificial pupil
- Surgical iridoplasty in patients with severe and intolerable symptoms