[Diagnosis of intraocular tumors: phosphorus 32 test]

The 32P test occupies an interesting place among the methods used in the diagnosis of intraocular tumours. It must, however, be reserved for certain situations only, and carried out under clearly defined conditions. The authors outline the indications and modalities of this test, and report the results obtained at the clinic of ophthalmology of Lausanne where it has been in use over the last 10 years.