Types of Access:

Physical

Visual Access

Access influenced by:

Acuity

Discrimination

Color perception

Visual Perception (figure ground, spatial, form perception)

Field of vision

Visual efficiency - focusing, eye movement / binocular vision

Visual memory

Eye hand coordination

Visual attention

Others ...

of selection items; mouse pointer on screen, trailing pointers

combinations AND contrast

work, communication partner, other work in classroom

Mac and Windows system level software display properties

All too often, vision is one of the last things we consider when assessing a student's access.

Many different types of visual problems can mask the student's real potential for access and achievement.

During the evaluation, making changes in what the student sees on the screen may result in differences in efficiency of access and quality of work.