Typical iris coloboma is located at: (A) Supero - temporal quadrant, (B) Supero - nasal quadrant, (C) Infero - temporal quadrant, (D) Infero - nasal quadrant
Answer is D. Iris coloboma :

It is congenital malformation due to failure to closure of choroidal or fetal tissue.
Most common site is infero - nasal quadrant.