Keeler-Praeger headmount squint light.
D002648:Child; D002675:Child, Preschool; D006257:Head; D006801:Humans; D007223:Infant; D008029:Lighting; D009885:Ophthalmology / Q000295:instrumentation*; D013285:Strabismus / Q000175:diagnosis*; D013523:Surgical Equipment