telescopic spectacle and the new subnormal vision lens
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telescopic spectacle and the new subnormal vision lens a brief review of the principles used in applying these aids to subnormal vision for the optometrist and the advanced student of optometry. by William Feinbloom

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Published by The American journal of optometry in Minneapolis, Minn .
Written in English


  • Spectacles,
  • Lenses,
  • Eye -- Examination,
  • Eye -- Diseases

Book details:

Edition Notes

StatementBy William Feinbloom.
LC ClassificationsRE961 .F4
The Physical Object
Pagination3-45 p., 1 l.
Number of Pages45
ID Numbers
Open LibraryOL6292138M
LC Control Number33019063

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No telescopic lenses were prescribed, but telescopic lenses were replaced by single lenses in six cases ; all of these patients preferred single to the telescopic lenses. A hand or stand magnifier was rarely prescribed, because the same strength lens worn in a spectacle frame increases the field of vision two and one-half to three times Cited by: 4. The Teleloupe Spectacles K bino are intended solely for binocular use in near vision to magnify reading texts to such an extent that they become visible again for persons with low vision. ZEISS is one of the world’s leading manufacturers of spectacle lenses, and . Evaluation of Certain Optical Devices in the Correction of Subnormal Vision*. Author links open overlay panel GEORGE A. LEVI CAPT. (MC) JOHN H. KING Jr. by: 2. Bioptic Driving Allowance. Yes. Minimum Visual Acuity. 20/ Unrestricted license. 20/ through a carrier lens, and a minimum of 20/60 through the bioptic: Restricted license. The power of the bioptic telescope shall not exceed four powers (4x), *The applicant shall present certification of having completed training in the use of a bioptic telescope for driving purposes.

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Try the new Google Books. Check out the new look and enjoy easier access to your favorite features Spectacles and Other Vision Aids: A History and Guide carved center bar century Chapter chatelaine Chinese spectacles chrome circa Claude Lorraine Coll Colmont colored concave contact lens convex corneal decorated developed embossed enamel 5/5(1).   A telescopic lens mounted inside the lenses of prescription glasses are available in different powers as determined by a low vision optometrist. The ability to focus the lenses for varying distances allows the wearer to enjoy outdoor scenery, a baseball game, TV shows, people’s faces, movie viewing, or an opera. The Low Vision History Timeline is an ongoing project to chronicle important events in the history of the field which have contributed to or been critical in changing knowledge and practice. Blindness, residual vision, and eye diseases in relation to correction of subnormal vision --Type and braille reading --Visual aids --Telescopic systems --Correction of subnormal vision with contact lenses --Nonspectacle magnifiers --Binocular corrections for subnormal vision --Training, instruction, and limitations of optical aids.