A Brief Review of Optic Nerve Head Abnormality and Report Three Cases

Congenital Optic disc anomaly have conflicting feature that sometimes it will be difficult to differentiate acquired or congenital entity of each other. This anomaly in spite of rarity but diagnosis of many congenital or acquired optic disc derangement is a diagnostic dilemma. So it need clinical and paraclinical study which in this report discuss the variety of clinical and paraclinical finding of them.