Al-Bahar Ophthalmology Center, Kuwait City, Kuwait
Subject
Periodic Alternating Nystagmus
Description
PAN is a nystagamus characterized by a cycle of uniderectional jerk nystagamus for 60-90 sec , a pause for 10-20 sec and a a cycle of a jerk nystagmus in the opposite direction for 60-90 sec. It is found in brain stem and cerebellar conditions as well as ocular albinism ( as in this patient).