Ophthalmic Brachytherapy
The treatment of ocular tumors is selected according to the size and location of the lesion. Whenever possible, conservation of the eye and vision is attempted. In many centres, brachytherapy is the first choice of treatment for uveal melanomas. This modality is also useful for some retinoblastomas and conjunctival tumors. With this form of radiotherapy, a radioactive plaque containing ruthenium-106 or iodine-125 is sutured to the wall of the eye, adjacent to the tumor, and left in place for several days until the required dose of radiation has been delivered.