Fano presents a similar case in a child of four months, in whom no other anomaly, either of organs or of vision, was observed.

On the right side, in front of the external half of the sclerotic, was observed a semilunar fold with the concavity inward, and which projected much more when the lower lid was depressed.

When the eyelid rolled inward the fold rolled with the globe, but never reached so far as the circumference of the cornea and did not interfere with vision.
Total absence of both irides has been seen in a man of eighteen.

Dixon reports a case of total aniridia with excellent sight in a woman of thirty-seven.

In Guy's Hospital there was seen a case of complete congenital absence of the iris.