Synonyms and related words :
achromatic lens, astigmatic lens, burning glass, camera, coated lens, concave lens, concavo-convex lens, condenser, convex lens, eyeglass, eyepiece, glass, hand lens, lens, magnifier, meniscus, object glass, objective, objective prism, ocular, prism, reader, reading glass, telephoto lens, toric lens, varifocal lens, zoom lens