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A New Instrument for Keratography

A New Instrument for Keratography Abstract Aberrations of the anterior corneal surface can be recorded by an instrument based on the Placido principle, which has a number of advantages over the other instruments previously designed for this purpose. It is also possible to make measurements on the original film to determine by means of a graph the exact radius of curvature in any desired area. The construction of the apparatus is not complicated, its operation is simple, and the results highly reproducible. References 1. Placido A: Novo instrumento de esploracro da cornea: Astigmatoscoio explorado . Period Ophtha Prat Lisb 2:27 2. 6:44, 1880. 3. Hansell P: A System of Ophthalmic Illustration . Springfield, Ill, Charles C Thomas Publisher, 1957, pp 69-70. 4. Amsler M: Ueber Photo-Keratoscopie . Ber Deutsch Ophthal Ges 48:202-209, 1930. 5. Fincham EF: The photo-keratoscope . Med Biol Illus 3:87-93, 1953. 6. Donaldson DD: A new camera for medical stereophotography with special reference to the eye . Arch Ophthal 52:564-570, 1954.Crossref 7. Westheimer G: A method of photoelectric keratoscopy . Amer J Optom 42:315-320, 1965.Crossref 8. Westheimer G, Felsenstein L: Automatic photoelectric keratometer . J Opt Soc Amer 56:807-810, 1966.Crossref http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Ophthalmology American Medical Association

A New Instrument for Keratography

Donaldson, David D.
Archives of Ophthalmology , Volume 88 (4) – Oct 1, 1972
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Publisher
American Medical Association
Copyright
Copyright © 1972 American Medical Association. All Rights Reserved.
ISSN
0003-9950
eISSN
1538-3687
DOI
10.1001/archopht.1972.01000030427016
Publisher site
See Article on Publisher Site

Abstract

Abstract Aberrations of the anterior corneal surface can be recorded by an instrument based on the Placido principle, which has a number of advantages over the other instruments previously designed for this purpose. It is also possible to make measurements on the original film to determine by means of a graph the exact radius of curvature in any desired area. The construction of the apparatus is not complicated, its operation is simple, and the results highly reproducible. References 1. Placido A: Novo instrumento de esploracro da cornea: Astigmatoscoio explorado . Period Ophtha Prat Lisb 2:27 2. 6:44, 1880. 3. Hansell P: A System of Ophthalmic Illustration . Springfield, Ill, Charles C Thomas Publisher, 1957, pp 69-70. 4. Amsler M: Ueber Photo-Keratoscopie . Ber Deutsch Ophthal Ges 48:202-209, 1930. 5. Fincham EF: The photo-keratoscope . Med Biol Illus 3:87-93, 1953. 6. Donaldson DD: A new camera for medical stereophotography with special reference to the eye . Arch Ophthal 52:564-570, 1954.Crossref 7. Westheimer G: A method of photoelectric keratoscopy . Amer J Optom 42:315-320, 1965.Crossref 8. Westheimer G, Felsenstein L: Automatic photoelectric keratometer . J Opt Soc Amer 56:807-810, 1966.Crossref

Journal

Archives of Ophthalmology – American Medical Association

Published: Oct 1, 1972

References

  • Novo instrumento de esploracro da cornea: Astigmatoscoio explorado
    Placido A
  • A System of Ophthalmic Illustration
    Hansell P
  • Ueber Photo-Keratoscopie
    Amsler M
  • The photo-keratoscope
    Fincham EF
  • A new camera for medical stereophotography with special reference to the eye
    Donaldson DD
  • A method of photoelectric keratoscopy
    Westheimer G
  • Automatic photoelectric keratometer
    Westheimer G, Felsenstein L