The Refractive and Motor Mechanism of the Eye
Keystone publishing Company, 1910 - Eye - 349 pages
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The Refractive and Motor Mechanism of the Eye (Classic Reprint)
William Norwood Souter
No preview available - 2016
Common terms and phrases
accommodation accordance action amount angle appear application astigmia asymmetry axis base becomes binocular called cause chapter ciliary combination concave condition conjugate consists convergence convex lens cornea correction corresponding crystalline lens curvature cylindrical defect determined deviation difference diplopia direction distance distinct divergence effect emmetropic equal equation error examination expressed external fact fixation focal focus give glasses greater greatest horizontal hyperopia hyperopic increase indicated latter length lenses less lies light limit means measured meridian meter method mirror movement moves muscles myopia nerve normal object oblique observer occurs optic parallel paralysis passing placed plane portion position possible posterior practical principal prism produced pupil radius rays rectus reflected refraction regarded relation represents result retina rotation seen side spherical strabismus surface symptoms tion turned usually varies various vertical vision visual wave
Page 23 - The sine of the angle of incidence bears a constant ratio to the sine of the angle of refraction.
Page 350 - Sent postpaid to any part of the world on receipt of price $2.50 PUBLISHED BY THE KEYSTONE PUBLISHING CO.
Page 350 - ... Prism-Dioptry. Why Strong Contra-Generic Lenses of Equal Power Fail to Neutralize Each Other. The Advantages of the Sphero-Toric Lens. The Iris, as Diaphragm and Photostat. The Typoscope. The Correction of Depleted Dynamic Refraction (Presbyopia). PRESS NOTICES OF THE ORIGINAL EDITION : OPHTHALMIC LENSES " The work stands alone, in its present form, a compendium of the various laws of physics relative to this subject that are so difficult of access in scattered treatises.
Page 351 - BOUND IN SILK CLOTH Sent postpaid to any part of the world on receipt of price $1.00 (4s.
Page 348 - Illustrations. Sent postpaid to any part of the world on receipt of price $2.50 (10s.
Page 47 - ... image can be formed on that side of the lens, but if an eye at E, receive these rays they will produce the same effect as if they came from A'.
Page 350 - On the Practical Execution of Ophthalmic Prescriptions involving Prisms. A Problem in Cemented Bifocal Lenses, Solved by the Prism-Dioptry. Why Strong Contra-Generic Lenses of Equal Power Fail to Neutralize Each Other. The Advantages of the Sphero-Toric Lens. The Iris, as Diaphragm and Photostat. The Typoscope. The Correction of Depleted Dynamic Refraction (Presbyopia). Press Notices on the Original Edition: OPHTHALMIC LENSES "The work stands alone, in its present form, a compendium of the various...
Page 164 - ... the movement of the lens. The reverse is true regarding a minus lens which is made up of an aggregate of prisms apex toward the optical center and base toward the periphery. Therefore when a minus lens is moved back and forth before the eye objects appear to move in the same direction as the movement of the lens, or, as it is usually expressed, "with
Page 107 - Cramer has succeeded in determining on the living eye the curved ray of the cornea, and of the two surfaces of the crystalline lens.
Page 73 - Discontent with its workings undoubtedly existed in the early part of the nineteenth century, but it was not until the period following the Civil War that State and local taxation acquired the status of a