Colorimetric measurement of the optic disk.
D000328:Adult; D003124:Colorimetry; D005901:Glaucoma / Q000175:diagnosis; D006801:Humans; D008875:Middle Aged; D009887:Ophthalmoscopy; D009896:Optic Atrophy / Q000175:diagnosis; D009900:Optic Nerve; D055095:Optics and Photonics