Although it is not strictly in the conjunctiva, congenital ocular melanocytosis is included here because it is an important epibulbar lesion of childhood. It is a congenital diffuse, patchy epibulbar pigmentation that is situated deep to the conjunctiva in the sclera (Fig. 8.11). There is usually diffuse pigmentation of the ipsilateral iris, causing heterochromia iridium. If the pig mentation extends onto the surrounding eyelid, it is called oculodermal melanocytosis, or nevus of Ota. Patients with congenital ocular melano-cytosis have a higher incidence of malignant melanoma of the uveal tract, usually later in life . Occasionally a uveal melanoma can occur in a child with ocular melanocytosis. It has been estimated that eyes with ocular melanocytosis carry a 1/400 lifetime risk for uveal melanoma . Hence an ophthalmologist should perform a fundus examination every year.
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Complete Guide to Preventing Skin Cancer. We all know enough to fear the name, just as we do the words tumor and malignant. But apart from that, most of us know very little at all about cancer, especially skin cancer in itself. If I were to ask you to tell me about skin cancer right now, what would you say? Apart from the fact that its a cancer on the skin, that is.