Abnormality of vision Poor visual behavior for age 2016-12-03T21:34:47Z Abnormal visual behaviour for age Poor visual behavior for age Lack of visual responsiveness or decrease in visual capabilities suggesting a lack of visual responsiveness or decrease in visual capabilities in an infant or young child in which visual behavior fails to meet normal developmental milestones. Abnormal visual behavior for age A failure to meet age-related milestones in areas such as (i) focusing ability, (ii) eye coordinationg and tracking of objects in the visual field, (iii) depth perception, (iv) color perception, and (v) object and face recognition. These milestones are generally met in the first three months of life, and failure to meet them may indicate abnormal visual development or function.