for determining the visual field, e.g. perimeter types

Full Title

Apparatus for testing the eyes; Instruments for examining the eyes > Subjective types, i.e. testing apparatus requiring the active assistance of the patient > for determining the visual field, e.g. perimeter types

Classification Context

Section:

HUMAN NECESSITIES

Class:

MEDICAL OR VETERINARY SCIENCE; HYGIENE

Subclass:

DIAGNOSIS; SURGERY; IDENTIFICATION