Orbital neural-glial hamartoma associated with a congenital tonic pupil.

Tonic pupils in children are rare, and only a handful of reports exist in the literature. We present the case of an orbital neural-glial hamartoma in an infant with a congenital tonic pupil and no proptosis. We have previously described this association in another child. This new case, the 6-year follow-up from the previous case, and a discussion of tonic pupils are presented.