title: The axis of astigmatism with special reference to streak retinoscopy.
mesh_terms: D001251:Astigmatism / Q000503:physiopathology; D006801:Humans; D007909:Lenses; D008954:Models, Biological; D012029:Refraction, Ocular; D012160:Retina / Q000503:physiopathology; D014787:Vision Tests