Medical Retina & the Posterior Segment:
|This is the right fundal appearance of a 24 year-old man who has
a normal visual acuity.
a. What is the diagnosis?
Coloboma of the retina and choroid.
It is caused by the incomplete closure of the embryonic fissure of the optic cup (the closure is usually completed in the fifth week of gestation). As the fusion occurs inferonasally, a typical coloboma is seen inferonasally.The coloboma can also affects the iris and optic nerve.
The following may be associated with coloboma:
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