Ophthalmic Lenses; Their History, Theory, and Application |
Common terms and phrases
addition amount angle appearance axis base Bausch & Lomb bifocal bifocal lenses BLUE cataract cause color combination complete considerable convex corrected crown glass curve cylinder dense depends desired developed diopter dispersion distance dividing edge effect equal example face finished fitted flint flint glass focal frame fused give GREEN grinding ground important increase inset invisible known length lens lenses light LOMB OPTICAL look manufacture materials means measure melting ment method Nokrome objects obtained operation ophthalmic optical center ordinary Orthogon Panoptik patient performance period placed portion position possible prescription prism prismatic produce proper reading field reading portion refraction removed result segment shape side single vision spectacles spectrum sphere spherical Style surface thickness tilting tion TRANSMISSION true Ultex usually vertex vertical VIOLET visible vision wearer