The Magna-Page® full-page magnifier is a specially designed Fresnel lens.
Full-page lens is molded (rather than hot stamped) of optical grade acrylic to provide optimum image quality.
Fresnel lens technology permits a large-size lens to be much thinner, without the weight and volume that a similarly-sized conventional lens would require.
It lets you read an entire page of print with considerable ease.
It provides instant magnification of an entire page, so you don't have to constantly reposition the magnifier as you read.