A heavily pigmented, slightly elevated area visible in the iris is commonly caused by which of the following?
a. benign iris nevus c. iridectomy
b. hyphema caused by bleeding in the iris d. trauma to the iris during cataract surgery
A
A heavily pigmented, slightly elevated area visible in the iris can be a benign iris nevus or a malignant melanoma. An iris nevus is much more common than melanoma. When the inferior portion of the iris is obscured by blood, this is called a hyphema. It is caused by bleeding from vessels in the iris as a result of direct trauma to the globe or eye surgery. An iridectomy is surgical removal of part of the iris.
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