Fixed focus magnifiers to be placed directly on the page
Courtesy of Designs for Vision
Courtesy of Designs for Vision
Blue Blocker filters for various visual impairments
High-powered reading lens with edge-to-edge clarity
You can see in Peggy Sandvig's prism lens (left) how the view of the books in the bookcase are drawn in to become part of her visual field, "tricking" her brain.
Prism glasses designed by Dr. Hoeft...The line you see in the middle of the left lens denotes where the regular lens changes to the prism area.