Fig. 5. Ophthalmoscopic retinoscopy scale applied to the sleeve case of a Heine retinoscope. The scale corresponds to the approximate focus of the instrument when used at 5 cm from the subject's eye. The reading is taken from the bottom of the sleeve. In this figure, the sleeve is adjusted for the plano. (Reproduced with permission fo the Regents of the University of Minnesota. Copyright 2000.)