A prospective, experimental, case series of 20 patients, with choroidal melanoma, in which
pars plana vitrectomy and Silicone oil as vitreous substitute will be used as intraocular
shielding for attenuating the deleterious effects of radiation dose delivered to healthy
ocular tissue during Iodine-125 plaque brachytherapy treatment and assess if the treatment
can reduce the incidence and severity of radiation-induced adverse effects like radiation
retinopathy and permanent loss of vision.