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Stimulus Motion Influences Measured Visual Field Extent in Toddlers

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Abstract

Studies of visual field development between birth and age 7 months have been conducted using a variety of stimuli, including three-dimensional objects, flickering lights, and moving gratings, and a variety of procedures, including kinetic perimetry (KP), static perimetry (SP), and a combination of KP and SP, termed hybrid static-kinetic perimetry (HP) (see Maurer & Lewis, 1991; Mayer & Fulton, 1993, for reviews). In contrast, little information is available on the effects of stimulus parameters or procedural variations on measured visual field extent in children between I and 3 years of age. Stimuli used in visual field studies of children in this age range have been almost exclusively 6-deg white spheres, presented using WSKP, a KP procedure in which the white sphere is attached to a wand and moved by hand along the arms of an arc perimeter (Mohn & van Hof-van Duin, 1986).

© 1998 Optical Society of America

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