Contact lenses for gonioscopy and ophthalmoscopy.
D003261:Contact Lenses; D005139:Eyeglasses; D006068:Gonioscopy; D006801:Humans; D009885:Ophthalmology / Q000295:instrumentation*; D019721:Ophthalmoscopes; D009887:Ophthalmoscopy / Q000295:instrumentation*
EYEGLASSES; OPHTHALMOLOGY/apparatus and instruments; OPHTHALMOSCOPY/apparatus and instruments