The American Cancer Society recommends the following:

Because we do not yet know what causes most cancers of the eye, it is not possible to know how to prevent them.

There is a known link between sunlight and melanomas of the skin. To reduce risk of these cancers, the American Cancer Society recommends limiting exposure to intense sunlight, covering up with protective hats and clothing, and using sunscreen. The American Cancer Society also recommends wearing UV-protected sunglasses when outside in strong sunlight. Wrap-around sunglasses with 99% to 100% UVA and UVB absorption provide the best protection for the eyes and the surrounding areas. This may help reduce the risk of developing cancers of the skin around the eyes. The link between sunlight and eye melanomas is not proven, but some doctors think that sunglasses might also reduce eye melanoma risk.

Many people with eye lymphoma have no recognized risk factors for this disease. For now, the only way to reduce the risk of eye lymphoma is to try to avoid immune system problems.