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Low Vision Devices (LVDs)
A low vision device is any device that enables a person to improve his or her visual performance. Many people confuse low vision devices with standard eyeglasses.
But there is a difference - LVDs provide some degree of magnification while standard glasses only focus the image for the eye. The use of magnification may lead to some amount of distortion but the image is enlarged, making it easier to see.
Low vision devices are the tools of trade in low vision care. They help low vision patients to acquire functional vision for practical everyday purposes, like reading the newspaper, writing a letter, or cutting vegetables and cooking.
Besides using an optical device to magnify or enlarge the retinal image, actually bringing an object closer or enlarging the print can be of great help to the visually impaired.
Categories of low vision devices
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