[Study on fusion. 3].
D000065:Accommodation, Ocular; D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D005403:Fixation, Ocular; D006801:Humans; D008297:Male; D008875:Middle Aged; D014786:Vision Disorders / Q000503:physiopathology; D014785:Vision, Ocular; D014792:Visual Acuity