Conjunctival lymphoma is a form of cancer but it is usually quite low grade and patients tend to do well with a slow course. Lymphoma is a cancer of the cells that fight infection (B- and T-cells) and can occur anywhere in the body. On the eye, conjunctival lymphoma appears as a painless pink tumor hidden up under the eyelids. In most cases, the patient does not have any other lymphoma in the body, but in about 20% another site is eventually found.
Depending on the size of the tumor, treatment can include complete excision, cryotherapy, injection of chemotherapy medicines, radiation, or treatment by intravenous chemotherapy. Sometimes patients take a special antibiotic to prevent long-term involvement elsewhere in the body.