retinoscopy

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Medical examination and analysis of the refractive properties of the eye.

from The Century Dictionary.

• noun Skiascopy.
• noun Examination of the retina with an ophthalmoscope.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Physiol.) The study of the retina of the eye by means of the ophthalmoscope.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun medicine Analysis of the refractive properties of the eye using a retinoscope; skiascopy.