title: Maddox rod to determine axis in laser refraction.
abstract: The procedure described offers a technique for determination of cylinder axis which requires no additional equipment beyond the basic apparatus used in a conventional laser refraction. An application of the Maddox Rod allows the patient to subjectively select the proper cylinder axis so that conventional laser refraction may proceed more smoothly and accurately
mesh_terms: D001251:Astigmatism / Q000175:diagnosis; D006801:Humans; D007834:Lasers; D012029:Refraction, Ocular; D012030:Refractive Errors / Q000175:diagnosis*