1) Eye procedure 
Retinoscopy (Ret) is a technique to obtain an objective measurement of the refractive error of a patient`s eyes. The examiner uses a retinoscope to shine light into the patient`s eye and observes the reflection (reflex) off the patient`s retina. While moving the streak or spot of light across the pupil the examiner observes the relative movemen......
• (n.) The study of the retina of the eye by means of the ophthalmoscope.
(ret″ĭ-nos´kә-pe) an objective method of investigating, diagnosing, and evaluating refractive errors of the eye, by projection of a beam of light into the eye and observation of the movement of the illuminated area on the retinal surface and of the refraction by the eye of the emergent rays. Calle...
Ret`i·nos'co·py noun [ Retina + -scopy .] (Physiol.) The study of the retina of the eye by means of the ophthalmoscope. 
Type: Term Pronunciation: ret′i-nos′kŏ-pē Definitions: 1. A method of determining errors of refraction by illuminating the retina and observing the rays of light emerging from the eye. Synonyms: scotoscopy, shadow test, skiascopy
the technique of looking into the eye with an optical instrument to observe the retina.
retinoscopy, skiascopy 1. The study of the retina of the eye by using an ophthalmoscope. 2. Medical examination and analysis of the refractive properties of the eye.
a method of determining focusing errors of the eye in which light is shined through the pupil and the reflected beam is measured