U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Method and apparatus for analysis and correction of abnormal refractive errors of the eye

Patent 4669466 Issued on June 2, 1987. Estimated Expiration Date: Icon_subject January 16, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

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3769963

Eye surgical instrument
Patent #: 3982541
Issued on: 09/28/1976
Inventor: L'Esperance, Jr.

More ...

Inventor

Assignee

Application

No. 06/691923 filed on 01/16/1985

US Classes:

606/3, With particular wavelength348/78, Eye606/11, Beam energy control or monitoring606/5Recurving or reshaping of the eye

Examiners

Primary: Howell, Kyle L.
Assistant: Shay, David M.

Attorney, Agent or Firm

International Classes

A61B 3/107 (20060101)
A61F 9/007 (20060101)
A61F 9/01 (20060101)
A61B 19/00 (20060101)

Abstract

The invention contemplates instrumentation to aid in performing refraction-corrective surgery on the conrea, (1) by determining the topography of the anterior surface of the cornea, the determination being in the form of digitized data entered into computer storage, (2) by determining the local thickness of the cornea along multiple axes, the determination being also in the form of digitized data entered into computer storage, and (3) by providing a CAD/CAM display of both categories of data, correlated as appropriate for the surgeon's selective display of a corneal region, aspect or section, as the surgeon may deem pertinent to a prospective operation.

Other References

  • "Ultrasonics in Clinical Diagnosis", ed. by Wells Chap. 5, Ultrasonic Investigations in Opthalmology, by Giglio pub. 1977, pp. 87-96
  • Scan Literature 1981
  • Story Literature 1/82
  • "Excimer Laser Surgery of the Cornea", by Trokel et al. Am. J., Opthal. 96:710-715, 1983
  • Operating Instructions for the Kreaner Coneometer 2/81
  • "Advanced Techniques in Opthalmic Microsurgery", by Girard, pub. 1981, pp. 84,107-110, 114, 116, 123, 125-133, 143-171
  • "Computer Assisted Mapping with the Light Microscope", by Forbes et al., J. of Neuroscience Methods, vol. 1, No. 1, 3/79, pp. 77-94
  • "Computer Graphics in Power Plant Design", by Strong et al. Power Engineering Society Summer Meeting 197
  • "The Use of Interactive Computer Graphics in the analysis of Structures", by Argyris et al.; Angewandte Informatic 4/72
  • Laser Focus, vol. 18, No. 1, Jan. 1982, pp. 57-58, H. T. Powell: "Excimers"
  • Laser Focus, vol. 20, No. 10, Oct. 1984, pp. 104, 106, Goldman: "Laser Surgery and Medicine in the next Decade"
  • Revue de Physique Appliquee, vol. 15, No. 9, Sept. 1980, pp. 1417 to 1426, Paris, France, Brunetaud, et al., "Les Applications Therapeuticques des Lasers"
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