Aim of the studies was to evaluate usefulness of the visual evoked potentials and static perimetry in diagnosis of an early glaucoma. There were 12 examined cases, divided into 3 equal groups: 1) patients suspected for glaucoma basing on the characteristic picture of the optic disc, 2) patients after acute glaucoma in one eye with no history of the disease in the fellow eye, 3) patients with open angle glaucoma diagnosed in one eye. Abnormal results of the examinations were found only in the second group. The authors concluded that visual evoked potentials and static perimetry could be helpful in proper diagnosis of many difficult cases suspected for glaucoma.