[Simplified cylinder skiascopy with the aid of the astikorrect].
D004864:Equipment and Supplies; D006801:Humans; D009885:Ophthalmology / Q000600:supply & distribution*; D012030:Refractive Errors / Q000175:diagnosis*; D042262:Retinoscopy
OPHTHALMOLOGY/equipment and supplies; REFRACTIVE ERRORS/diagnosis