Eye and orbital cancer

Diseases of the eye and orbital contents which can be treated by radiation therapy are relatively uncommon. They include benign diseases such as pterygium, orbital pseudo-tumor, and Graves' exophthalmos. Malignant diseases in adults include orbital and choroidal metastases, lacrimal gland tumors, carcinoma of the bulbar conjunctiva, orbital lymphomas and melanomas. Pediatric malignancies include retinoblastomas, optic nerve gliomas, and orbital rhabdomyosarcomas. Orbital irradiation may result in a variety of normal eye and orbital tissues responses. Those responses may occur when irradiating the eye or orbital diseases listed above or non-orbital primary tumors, such as nasal cavity and paranasal sinus tumors