Ophthalmic instruments - Perimeters
|Publication Date:||1 June 1999|
|ICS Code (Ophthalmic equipment):||11.040.70|
Specifies requirements and test methods for instruments designed to assess differential light sensitivity in the visual field by the subjective detection of the presence of test stimuli on a defined background. Does not apply to clinical methodologies and other psychophysical tests of the visual field.