gonioscope

(redirected from Goldmann lens)
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Related to Goldmann lens: gonioscopy lens, Hruby lens

gonioscope

(ˈɡəʊnɪəʊˌskəʊp)
n
(Medicine) an instrument used for examining the structures of the eye between the cornea and the lens that are not directly visible
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The main goniolenses used are the Goldmann lens and the Zeiss 4-mirror lens (alternatives are available).
With the Goldmann lens you need to rotate the lens on the eye to view the whole angle (usually once into each quadrant), but with the Zeiss 4-mirror lens, the whole angle can be viewed from each of the four mirrors.