A lens ground according to an optician's prescription; (in plural) spectacles made for the correction of sight according to an optician's prescription (as distinct from those designed simply as sunglasses, protective spectacles, etc.).
Origin
Late 19th century; earliest use found in Scientific American.
Definition of prescription glass in US English:
prescription glass
noun
A lens ground according to an optician's prescription; (in plural) spectacles made for the correction of sight according to an optician's prescription (as distinct from those designed simply as sunglasses, protective spectacles, etc.).
Origin
Late 19th century; earliest use found in Scientific American.