In Canada, someone who is "legally blind" has vision that is worse than or equal to 6/60 with best correction in the better eye or a visual field extent of less than 20 degrees in diameter, while someone with "low vision," as defined by the CNIB, has a range of vision of 10% of less or a field of vision 10 degrees or less.
Eye conditions can be caused by a number of factors such as glaucoma, diabetic retinopathy, retinal detachment, retinitis pigmentosa (tunnel vision), and nerve damage. Individuals with any of these conditions may seek the assistance of a service animal, see our service animal page for more information.
A number of conditions fall under this category, varying from permanent psychiatric conditions to less permanent conditions. Both types can interfere with someone's ability to concentrate on their school work. These conditions include but are not limited to:
Attention Deficit Hyperactivity Disorder (ADHD) is a developmental disorder in which an individual typically shows inappropriate degrees of inattention, over-activity, and impulsivity.
This disorder often appears in early childhood and is usually chronic. In addition, the behaviors that individuals with ADHD display are not readily explained by sensory, language, or motor impairment; a developmental disability; or, severe emotional disturbance.