With low vision, you cannot see well enough to do everyday tasks — even with regular glasses, contact lenses, medicine or surgery. There are many signs of vision loss: finding it difficult or impossible to read, write, shop, watch television, drive a car or recognize faces. It may be difficult to set dials or manage glare.
With low vision, you might have trouble picking out and matching the color of your clothes. The lights may seem dimmer than they used to, making work or household chores more difficult.
The most common types of low vision include loss of central vision, loss of peripheral (side) vision, night blindness, blurred vision and hazy vision.
The phantom visions of Charles Bonnet syndrome
About 20 to 30 percent of people with vision loss see lifelike images they know are not real. This is called Charles Bonnet syndrome (CBS). It is important to understand that this syndrome is not a loss of mental capacity, but just part of vision loss for some. It is helpful to think of these images as being produced by the brain to replace the absence of images produced by the damaged eye.
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