[Choroidal osteoma--diagnosis and ophthalmic management ]

Two cases of the long term observation and clinical findings of choroidal osteoma are presented. Choroidal osteoma (choroidal osseous choristoma) is a very rare, benign, ossifying tumour of the choroid, which typically affects healthy young women. The etiology is unknown. Neovascularisation and haemorrhage is a frequent associated finding. Subretinal neovascularisation, which tend to develop progressive visual loss, may be treated successfully with argon or krypton laser photocoagulation.