All about eyes and eye care, including the structure of the eye, how vision works, and the development of glasses, contact lenses, and surgery techniques used to correct vision. This outstanding science title is clearly written, carefully researched, and up-to-date. The authors discuss the ten distinct layers of the retina, common vision problems from myopia to hyperopia, and how to read a lens prescription. A history of eyeglasses takes the reader from the first written mention--in 1626--by English scientist Roger Bacon to the 1988 introduction of bifocal contact lenses using holography. Laser surgery, braces for eyes, radial keratotomy, and corneal sculpting are all included. Index, photos and drawings not seen.