The optics of fluorescein patterns.
When fitting a hard lens, one diagnostic lens application with an over-refraction will allow the practitioner to determine the corneal radius and a base curve with appropriate lens power for the optical area of the cornea. The calculations are simple enough to be performed mentally.
D003261:Contact Lenses / Q000592:standards*; D005452:Fluoresceins / Q000008:administration & dosage*; D006801:Humans; D012029:Refraction, Ocular
D005452:Fluoresceins