The authors define the term planimetry in general and planimetry of the optic disc in particular and present a brief review of the history of planimetric evalu- ation of the optic disc. They describe a digital analyzer of their own design, the method of examination of the optic disc and further processing and recording of data. They define the indications and contraindications of examination, summa- rize the asset and limitations of the method used. The authors examined so far by digital planimetry 1575 optic discs of 856 patients.

        Key words: planimetry, optic disc, digital analyzer