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Introduction to Assistive Technology for Vision Impairments

1.4.2. Vision Simulations

Here is a short video that helps us see through the eyes of people with different types of vision impairments.  

Table: Summary of Vision Impairment types

S.No Condition Characteristics Image
1 Central Vision Loss
  • Dark, blurry or blind spot in the central visual field.
  • Vision appearing wavy or distorted
  • Difficulty reading and recognizing faces
    • 2 Peripheral Vision Loss
  • Inability to see anything to one side or both sides or anything directly above and/or below eye level.
  • It affects mobility and reading speed as the person can only see a few words at a time.
    		•
    3 Blurred Vision
  • The complete visual field gets blurry (appearing out of focus) or part of it.
  • Near-sightedness or far-sightedness.
    		•
    4 Light sensitivity (Glare Disability)
  • Pain or discomfort from relatively normal levels of illumination.
    • 5 Night Blindness
  • Inability to see in dim light or darkness.
  • Difficulty adapting when going from light to dark settings.
    • 6 Color Blindness
  • Decreased ability to see color or differences and shades in color.
    • 7 Complete blindness
  • All useful vision is lost.
    • *Note

    The above information is to understand how specific vision impairments disable the functional abilities of people. Please note that this does not give the entire experiential knowledge of what vision impairment feels like. 

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