Abstract: A method for detecting cancer cells in a blood sample is provided comprising the steps of proliferating an oncolytic virus at least in the cancer cells by incubating the blood sample being suspected to contain the cancer cells with the oncolytic virus; mixing the blood sample obtained from the proliferating step with a fixing agent and a nonionic surfactant; and detecting the cancer cells in the blood sample obtained from the mixing step, in which the oncolytic virus has been proliferated.

Abstract: To provide a gene examination method for predicting the onset risk of glaucoma based on the relation between a glaucoma-associated gene and the onset of glaucoma, the onset of glaucoma in future is predicted by using as an indication mutations in the gene region involving the code region and/or the upstream region of a glaucoma-associated gene. In the base sequence represented by SEQ ID NO:1, mutation(s) in at least one of the following positions are detected, i.e., the 194-, 199-, 324-, 1051-, 1084-, 1627-, 1685-, 1756-, 1853-, 2830-, 3371-, 4037- and 4364-positions.

Abstract: Future onset of glaucoma is predicted using as a marker, mutation of base(s) in a coding region of a glaucoma-related gene(OPTN gene).