Graves' ophthalmopathy evaluated by infrared eye-movement recordings
S. E. Feldon and R. Unsold
Thirteen patients with varying degrees of Graves' ophthalmopathy were
examined using high-resolution infrared oculography to determine peak
velocities for horizontal eye movements between 3 degrees and 30 degrees.
As severity of the orbital disease increased, peak velocities became
substantially lower. Vertical-muscle surgery failed to have any effect on
peak velocity of horizontal eye movements. In contrast, orbital
decompression caused notable improvement in peak velocity of eye movements.
Eye-movement recordings, which provide a measure of extraocular muscle
function rather than structure, may provide a safe, sensitive, and accurate
method for classifying and following up patients with Graves'
ophthalmopathy.
