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W Kosnik, J Fikre, R Sekuler; Visual fixation stability in older adults.. Invest. Ophthalmol. Vis. Sci. 1986;27(12):1720-1725.
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Visual fixation of a small, stationary target was measured in 12 young observers (mean age = 22 yr) and in 12 older observers (mean age = 70 yr). The two groups' fixation behavior did not differ on various dimensions of fixation stability: mean fixation area, intra-subject variability, or changes in fixation over successive test periods. Connections between these results and age-related changes in the oculomotor system are discussed.
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