CFR › Title 21 › Part 886 › §886.136021 CFR §886.1360Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)Identification. A visual field laser instrument is an AC-powered device intended to provide visible laser radiation that produces an interference pattern on the retina to evaluate retinal function.(b)Classification. Class II.