Accommodation, convergence and aging.
D000065:Accommodation, Ocular; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D003867:Depth Perception; D006801:Humans; D007909:Lenses; D008875:Middle Aged; D005082:Physical Exertion; D011305:Presbyopia / Q000209:etiology / Q000534:rehabilitation; D014787:Vision Tests; D014785:Vision, Ocular