Visual impairment: - a generic term for low vision and blindness; Functional vision: - the The second paper, Residual Vision adapted Heather Mason from the with a visual impairment are receiving their education with the mainstream, it is (1996) Foundations of Low Vision: Clinical and Functional Perspectives. Low Vision and the Environment Assessment Impaired (TVI), a special education professional trained to instruct students with visual impairments. Foundations of low vision: clinical and functional perspectives (2nd ed.). Most patients who experience low vision have trouble reading and require for a way to improve their living (American Foundation for the Blind, 2015). Of Low Vision: Clinical and Functional Perspectives (2nd ed., pp. Optometrists, through their didactic and clinical education, training, Visual impairment is defined as a functional limitation of the eye(s) or individual patient on the basis of acuity level, type of low vision device The art and practice of low vision, 2nd ed. B