Ophthalmology and Visual Sciences

  • Types of Visual Impairment that can Benefit from Vision Rehabilitation

    Low vision affects people at school, on the job, and at home. It makes daily activities like writing, reading, watching television, and walking difficult. Symptoms of low vision include:

    Blurred vision

    Where objects appear out of focus. Causes include macular degeneration, diabetes, corneal disease, and cataracts.

    Central field loss

    A darker hazy patch appears in the center of objects. Causes include macular degeneration and optic atrophy.

    Contrast loss and glare problems

    Objects blend with background: lights are distracting or uncomfortable. Causes include glaucoma, cataracts, corneal disease, and albinism.

    Multiple field loss

    Dark patches are scattered around objects. Causes include diabetes, glaucoma, retinal detachment and trauma.


    Objects appear out of shape, crooked, deformed, wavy, or doubled. Causes include macular degeneration, diabetes, and retinal detachment.

    "Tunnel vision"

    Objects in the center of the field of vision are visible: objects on the sides are missing. Causes include glaucoma, retinitis pigmentosa, and stroke.