3 LITERATURE REVIEW
Technological innovations are becoming more
advanced. New technologies continue to develop,
especially in the realm of information and
communication. The availability of computers and
the Internet has raised the issue of accessibility. This
is especially so for physically challenged people like
the visually impaired.
Technological Determinism states that media
technology shapes how we as individuals in a
society think, feel, act and how our society operates
as we move from one technological age to another
(McLuhan, 1962). Also, Rodman (2001) defines
Technological Determinism, as a theory that states
that the introduction of new technology changes
society, sometimes in unexpected ways.
It is inherently difficult for persons with visual
impairment to receive, perceive, or interpret visual
information. This inability precludes these
physically challenged persons from participating, in
a meaningful way, in today’s knowledge-based
economy. Pike (2003) therefore holds that the future
jobs of thousands of these visually impaired persons,
their ability to use labour saving household
appliances, and their capacity to deal electronically
with the rest of the world is at stake.
ICT implies using computers, mobile phones and
other digital devices to access and share information.
ICT systems use screen based technology to present
information. This means that the visually impaired
might find it challenging to read from the screen;
follow diagrams and charts; use email, browse or
blog; and, store and organize information on a
personal computer or phone. Assistive technology
offers possibilities that could make life a lot easier
for the visually impaired. But there are concerns of
accessibility and competencies.
Abner and Lahm (2002) investigated the extent
to which visually impaired students in the U.S. use
assistive technology. Findings show that visually
impaired primary and secondary students across the
United States had not been trained to use assistive
technology in public schools. This means that the
competency required to access such technology is
denied. According to American Foundation for the
Blind (2005), a good majority of these students
attend the same regular public schools, sit in the
same classrooms, and have the same teachers as do
their sighted counterparts. This means no special
provision is made to assist their education, since
they are included in regular education as prescribed
by American law.
Visually impaired students need textbooks in
Braille or large print. Smith et al., (2004) found that,
regardless of the U.S. Education Act which
mandates equal and timely access to information
presented in school to all categories of students,
there was consistent delay in making Braille
materials and large prints available to visually
impaired students.
Kapperman et al., (2002) suggest that students
with visual impairment in the U.S. state of Illinois,
were not receiving the experience the required in
order to use assistive technology.
Thurlow et al., (2009) found a pressing need for
technology-based reading assessment for the
visually impaired in the U.S.
Kelly (2009) investigated the use of assistive
technology by visually impaired students in the
United States. Findings show that a majority of these
students were not using assistive technology.
Mong and Cohen (2011) reveal limited content
knowledge amongst teachers using assistive
technology in Singapore. This results in
inconsistencies and inadequacies in the delivery of
instruction. It also reveals that students instructed
with assistive technology displayed a mixed range of
abilities ranging from little to basic knowledge.
The assistive technology market in advanced
societies is replete with devices which could make
the visual world accessible to persons with visual
impairment. But from the foregoing literature there
appears to be a problem of accessibility to this
available technology. This portends a divide.
Ugodulunwa (2011) notes that visually impaired
students in Nigeria are required to do their
assignments, tests, examinations and write their
research project report like other normal students.
This goes on without provision of specialized ICTs
that can enhance their performance at their studies.
Against the backdrop of the dearth of specialized
ICTs, Ugodulunwa (2011) recommended the need to
provide both hardware and software to meet the
needs of visually impaired students.
Assistive technology can play a major role in
enabling persons with visual impairment to engage
in their occupations of choice and participate fully in
their community (Polgar, 2001). Assistive
technology competency promotes independence for
end users (Ivanoff and Sonn, 2005).
Visually impaired people are, arguably, the most
marginalized group, and are drastically affected by
the visual bias of the information technology
industry. This leaves us with a digital divide on two
distinct poles: the technology "haves" and "have
nots". The availability of information technology
does not necessarily ensure equitable access to
AssistiveTechnologyDivide-ADevelopingCountryPerspective
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