QUANTITATIVE EYE AND HEAD MOVEMENT RECORDINGS OF RETINAL DISEASE MIMICKING SPASMUS NUTANS

PURPOSE/METHODS: To investigate whether quantitative head and eye move ment recordings can distinguish patients with spasmus nutans from pati ents with retinal diseases mimicking spasmus nutans. A patient with co ngenital stationary night blindness was followed up for seven years wi th electro oculographic eye movement recordings. RESULTS/CONCLUSIONS: Rhythmic head movements and fine, intermittent, asymmetric, disconjuga te, high-frequency, out-of-phase pendular nystagmus were recorded. Eye and head movement recordings of patients with congenital stationary n ight blindness can mimic spasmus nutans.