Symptoms of Visual impairment

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The most common symptom of sight loss is a steady reduction in vision, with distant objects becoming more difficult to distinguish. However, there can be many different symptoms of sight loss other than reduction of vision. For example:

Sub-acute glaucoma may cause a dull, aching pain, foggy vision and rainbow coloured rings around lights.
Macular degeneration causes distorted vision; straight lines appear wavy and objects appear larger or smaller than they really are.
Cataracts can cause blurred vision, colours appear faded and bright lights become dazzling.
Dry eye syndrome causes a burning, gritty sensation in the eyes.
Diabetic retinopathy causes double vision and difficulty focussing.

The symptoms of sight loss depend greatly on the cause. Some conditions bring on a sudden and severe loss of vision, while others cause gradual sight deterioration.