You searched for: “skiascope
retinoscope, skiascope
1. An optical device used to illuminate a subject's retina during retinoscopy.
2. An apparatus that determines the refractive power of the eye by observing the lights and shadows on the pupil when a mirror illumines the retina.
skiascope
An optical instrument for examining refraction of light in the eyes or the ability of the eyes to bend light so that an image is focused on the retinas.