[Eyeglasses].
Spectacles belong to the most ancient inventions in cultural history. Their development, however, cannot be regarded as final. New impetus has resulted in the creation of non-spherical lenses and, through the development of refractive lenses, in a more progressive optic effort.
Reiner
J
J
D005139:Eyeglasses; D006801:Humans; D055095:Optics and Photonics; D012029:Refraction, Ocular; D012030:Refractive Errors / Q000628:therapy*
Brillengläser.