The optical spacer--a simple device which extends the scope of indirect ophthalmoscopy.
A simple device is described which both facilitates and significantly extends the scope of indirect ophthalmoscopy.
Montgomery
D M
DM
Tennent Institute of Ophthalmology, University of Glasgow.
D005403:Fixation, Ocular; D005654:Fundus Oculi; D006801:Humans; D019721:Ophthalmoscopes; D055095:Optics and Photonics; D014794:Visual Fields