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TABLE OF CONTENTS
Ophthalmic Glass Page
The Manufacture of Ophthalmic Lenses Page
2 other sections not shown
amount of prism angle anisometropic aphakic aphakic eye astigmatism axis barium barium crown base curve batch Bausch & Lomb bifocal lenses bifocal segment cataract lenses concave cornea corrected countersink crown glass curvature cylinder dependent segments dioptric power distance lens distance portion distance vision dividing line flint glass focal length fused bifocal grinding Henry Lomb horizontal inset Kryptok lens powers light Lomb Optical major lens measure melting meniscus ment meridian modern bifocals Nokrome obtained one-piece OPHTHALMIC GLASS ophthalmic lenses optical center optical glass optician Orthogon bifocals Panoptik patient plano possible prescription prism base prism diopters prism power prism segment bifocals prismatic effect reading addition reading area reading field reading point reading portion reading segment refractive index result single vision lenses spectacles sphere spherical sphero tance temperature test lenses thickness tical tilting tion true power Ultex vertex depth vertex refraction Vertometer visible spectrum