Definition of Low vision device

Low vision device: A devise to help to improve visual ability of a person with low vision. Low vision devices may be optical or non-optical. Optical devices such as a magnifying glass involve the use of lenses to improve vision whereas non-optical devices such as large print help bring images closer to the eyes.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=31982
Last Editorial Review: 6/14/2012