[Subjective determination of ocular refraction. I: Optical principles].
Friedburg
D
D
friedburgkr@compuserve.de
Krause
K
K
D005139:Eyeglasses; D006801:Humans; D055095:Optics and Photonics; D012029:Refraction, Ocular; D012030:Refractive Errors / Q000175:diagnosis* / Q000628:therapy