Retinoscopy.
D006801:Humans; D006956:Hyperopia / Q000175:diagnosis; D008722:Methods; D009216:Myopia / Q000175:diagnosis; D019721:Ophthalmoscopes; D009887:Ophthalmoscopy; D055095:Optics and Photonics; D012030:Refractive Errors / Q000175:diagnosis*; D012160:Retina