Senile scleral plaques: CT.

I studied the CT appearances and the distribution of 109 asymptomatic calcified senile scleral plaques in 49 patients (98 eyes). The vast majority were just anterior to the insertion of the horizontal rectus muscles. The calcified plaques are variable in size, can be single or multiple, involve one or both eyes, and are only seen in elderly patients. Beam-hardening artifact and forward protrusion beyond the confines of the sclera are uncommon but potentially confusing features. Confusion with other pathology is unlikely with awareness of the plaques' asymptomatic nature and their clinical and CT appearances.