Chromoretinoscopy.
D000065:Accommodation, Ocular; D005403:Fixation, Ocular; D006801:Humans; D008875:Middle Aged; D009887:Ophthalmoscopy / Q000379:methods*; D011305:Presbyopia / Q000503:physiopathology; D012029:Refraction, Ocular; D012160:Retina / Q000502:physiology*