Ocular coloboma—a comprehensive review for the clinician
On OCT, congenital developmental colobomas have total absence of retina and choroid in the atrophic central area of the scar while in congenital toxoplasmosis, there is retinal thinning, RPE hyper-reflectivity, excavation, intra-retinal cysts and fibrosis [47, 48].
Coloboma - EyeWiki
Posteriorly located coloboma can involve the optic nerve, retina, and choroid. If the retina is involved, it is reduced to glial tissue with no underlying RPE or choroid. This appears as an area of whitening often with pigment deposition at the junction of the coloboma and normal retina.
Ocular coloboma—a comprehensive review for the clinician
2021年3月21日 · On OCT, congenital developmental colobomas have total absence of retina and choroid in the atrophic central area of the scar while in congenital toxoplasmosis, there is retinal thinning,...
management of coloboma-related retinal detachments, vitrectomy procedures, silicone oil injection, and endo laser photocoagulation to surround the colobomatous area appeared to improve the surgical results considerably . Herein we describe the technique used and outcome in 17 eyes treated for coloboma-related retinal detach ment. MATERIALS ...
What Is a Coloboma? - American Academy of Ophthalmology
2024年9月10日 · In this coloboma, part of the retina is missing. The symptoms of a coloboma depend on where it occurs. A coloboma of the iris will be visibly noticeable due to the keyhole or cat-eye appearance of the pupil. An eyelid coloboma will also be noticeable due to a notch or defect in the eyelid.
Macular Colobomata: Comparison of Clinical and Optical …
Retinochoroidal colobomata or the typical uveal colobomata is an uncommon ocular malformation, reported to occur at a rate of 0.048% (1 in 2077 live births) in the general population. 1 This is thought to be owing to an anomalous closure of the fetal fissure. A distinct type of coloboma is macular colobomata, which is even more uncommon.
Bilateral Colobomas Affecting the Iris, Optic Nerve, Choroid, and Retina
2024年11月4日 · Fundus imaging of both eyes revealed inferonasal chorioretinal colobomas, which involved the macula and the optic disc (A, right eye). Widefield OCT shows retinal tissue bridging the colobomatous defect (yellow arrows) in the …
Ocular Colobomata - Survey of Ophthalmology
1989年12月15日 · Ocular colobomata are caused by defective embryogenesis. All layers of the eye can be involved, including the cornea, 33,102 iris, zonule and ciliary body, choroid, retina, and optic nerve.
Optic Nerve Coloboma Spectrum - EyeWiki
Optic Nerve Coloboma Spectrum comprises a spectrum of diseases with overlapping characteristics (cavitation of the optic disc), but overall different clinical findings, etiologies, and associations. Some of the diseases discussed are Optic Disc coloboma, Morning Glory Syndrome, Peripapillary Staphyloma, Pedler Coloboma, and Optic Disc pits.
Retinochoroidal coloboma: varieties of clinical presentations
The five symptomatic cases include: one with extensive bilateral involvement; one with associated rhegmatogenous detachment and peripheral tears; one with retinal detachment and apparent holes in the intercalary membrane; one with subretinal neovascularization; and a case with diabetic retinopathy, optic nerve coloboma, and peripheral ...