Article 3

A beneficiary person is a person who:
(a) is blind;
(b) has a visual impairment or a perceptual or reading disability which cannot be improved to give visual function substantially equivalent to that of a person who has no such impairment or disability and so is unable to read printed works to substantially the same degree as a person without an impairment or disability; or (3)
(c) is otherwise unable, through physical disability, to hold or manipulate a book or to focus or move the eyes to the extent that would be normally acceptable for reading;
regardless of any other disabilities.
 

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(3)  Agreed statement concerning Article 3(b): Nothing in this language implies that ‘cannot be improved’ requires the use of all possible medical diagnostic procedures and treatments.