You searched for: “sciascope”
sciascope (s) (noun), sciascopes (pl)
A device used for determining the refractive state of the eyes by observing the movements of the retinal lights and shadows.
This entry is located in the following units: scio-, sci-, scia- (page 1) scopo-, scop-, scept-, skept-, -scope-, -scopy, -scopia, -scopic, -scopist (page 24)