The assessment of near vision.
There are many variables in the physiology of near vision, the end-point criteria, the types available, and the measurements made. I have suggested a hard criterion of the smallest print at the nearest distance. This controls the physiological variables and provides repeatable data for the evaluation of vision, accommodation, and binocular function.
D000065:Accommodation, Ocular; D006801:Humans; D009216:Myopia / Q000175:diagnosis* / Q000503:physiopathology; D014792:Visual Acuity; D014794:Visual Fields