Learn from an expert with more than 40 years experience. This classic text efficiently covers a broad range of information on ophthalmic optics. Its presentation of optical concepts and formulae is made comprehensible, even on an introductory level, through clear explanations, diagrams, and clinical applications.
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accommodation afocal ametropia amount angle aniseikonia anisometropia aphakia aphakic aspheric axial back surface back vertex power base curve base-down base-in base-out base-up bifocal bifocal segment center of rotation center thickness chromatic aberration coating contact lens cornea correcting lens crown glass distance portion entrance pupil equivalent power example exophoria field of view focal length focal line frame fused bifocal geometric center horizontal hyperope hyperopia increase index of refraction keratometer lens design lens power lensometer light located major lens manufacturers minus lens myopia object oblique astigmatism ocular one-piece ophthalmic crown glass ophthalmic lenses optic axis optical center optical system Optom patient photochromic plastic polycarbonate prescription principal meridians prism diopters prismatic effect pupil rays reading level refracting power result retinal image shown in Figure spectacle lens spectacle magnification spectacle plane spherical straight-top telescope tinted tion toric transmission transmittance trifocal UV radiation Varilux vergence vertex distance Vision-Ease visual wavelength wearer