PURPOSE: To report the echographic appearance of a scleral fold in hyp
otony. METHOD: We performed ultrasonography on a patient who, after tr
abeculectomy with mitomycin C, had an intraocular pressure of 1 mm Hg,
an opaque cataract, and suspected hypotonous maculopathy in the left
eye. RESULTS: An area of dome shaped eyewall thickening was noted near
the tendon of the lateral rectus muscle in primary gaze. This thicken
ing increased substantially in lateral gaze, mimicking a foreign body
or a tumor. CONCLUSION: Recognizing this abnormality is important to a
void erroneous diagnosis of an intraocular foreign body or a tumor in
hypotonous eyes.