Ophthalmology General 4c53eb90 Typical iris coloboma is located at A Supero - temporal quadrant B Supero - nasal quadrant C Infero - temporal quadrant D Infero - nasal quadrant High-Yield Explanation Iris coloboma : It is congenital malformation due to failure to closure of choroidal or fetal tissue. Most common site is infero - nasal quadrant.