Isbn: 9786130237936 - corrective lens: lens (optics), eye, myopia, hyperopia, astigmatism (eye), presbyopia, glasses, contact lens, intraocular lens, cataract, refractive surgery, eyeglass prescription (1 risultati)

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -A corrective lens is a lens worn in front of the eye, mainly used to treat myopia, hyperopia, astigmatism, and presbyopia. Glasses or 'spectacles' are worn on the face a short distance in front of the eye. Contact lenses are worn directly on the surface of the eye. Intraocular lenses are surgically implanted most commonly after cataract removal, but recently for purely refractive purposes. Myopia (short sightedness) requires a divergent lens, whereas hyperopia (far sightedness) requires convergent lens. 152 pp. Englisch.…