The following words and terms, when used in this subchapter,
have the following meanings, unless the context clearly indicates
otherwise:
(1) Blind--An individual whose visual acuity with best
correction is 20/200 or less in the better eye; or an individual with
a limitation in the field of vision such that the widest diameter
of the visual field subtends an angle no greater than 20 degrees,
which means a visual field of no greater than 20 degrees in the better
eye.
(2) Customer--An individual with a disability who has
applied for or who is receiving VR services.
(3) Deafblind--An individual:
(A) who has a central visual acuity of 20/200 or less
in the better eye with corrective lenses, or a field defect such that
the peripheral diameter of visual field subtends an angular distance
no greater than 20 degrees, or a progressive visual loss having a
prognosis leading to one or both of these conditions;
(B) who has a chronic hearing impairment so severe
that most speech cannot be understood with optimum amplification,
or a progressive hearing loss having a prognosis leading to this condition;
and
(C) for whom the combination of impairments described
in subparagraphs (A) and (B) of this paragraph cause extreme difficulty
in attaining independence in daily life activities, achieving psychosocial
adjustment, or obtaining a vocation;
(D) who, despite the inability to be measured accurately
for hearing and vision loss due to cognitive or behavioral constraints,
or both, can be determined through functional and performance assessment
to have severe hearing and visual disabilities that cause extreme
difficulty in attaining independence in daily life activities, achieving
psychosocial adjustment, or obtaining vocational objectives; or
(E) who meets such other requirements as the Secretary
of Education may prescribe by regulation.
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