Optic disc drusen make examination towards glaucoma difficult to interpret. They change nerve head morphology and visual field defects can resembling glaucomatous damage. Patient with strong headache was examined and we found drusen on both optic nerve heads and intraocular pressure about 27 mmHg. Visual fields demonstrated scotomas - in lower half and the enlargement of the blind spot. After topical treatment and intraocular pressure normalization, the patient's complains had gone. Control examination after one year revealed progression of visual field changes. Electrophysiological examination showed abnormalities typical for glaucoma.