ASSISTIVE TECHNOLOGIES FOR PERSONS WITH VISUAL IMPAIRMENT
What is Visual Impairment? Visual impairment is an umbrella term that accommodates all types and degrees of visual loss or deviation. A child who has low vision or partial sightedness: Myopia (Short sightedness), hyperopia (Long sightedness) astigmatism (blurred vision) or no light perception (total blindness) or has restricted central vision or has lost sight in one eye is considered a child with visual impairment. These instances typify some form of loss or deviation or damage of the visual apparatus and therefore are regarded as visual impairment. In this context, visual impairment is referred to both blindness and low vision. Visual impairment can be defined legally and educationally. This context adopts the educational definition of visual impairment which considers the ability or degree of a child to use visual ability educationally. Educationally, a child with low vision is the one who has some residual vision, and therefore can read enlarged prints. On the other side, an educat