This standard BS EN ISO 12866:1999+A1:2008 Ophthalmic instruments. Perimeters is classified in these ICS categories:
11.040.70 Ophthalmic equipment
This International Standard 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.
It does not apply to clinical methodologies and other psychophysical tests of the visual field.
This International Standard takes precedence over ISO 15004, if differences exist.