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Spectacles for microscopists and astronomers.

P W Blue1, J F Pyle

  • 1Nuclear Medicine Service, Fitzsimons Army Medical Center, Aurora, CO 80045-5001.

Journal of the American Optometric Association
|January 1, 1989
PubMed
Summary
This summary is machine-generated.

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Special reversed-lens spectacles were created to improve field of view for microscopy and astronomy. These spectacles proved essential for astronomers with astigmatism, offering a solution where contact lenses failed.

Area of Science:

  • Optometry and Vision Science
  • Ophthalmology
  • Optical Engineering

Background:

  • Microscopic and telescopic eyepieces often have limitations related to vertex distance and field of view.
  • Correcting astigmatism in astronomers can be challenging with standard methods, including contact lenses.

Purpose of the Study:

  • To design and evaluate novel spectacles with reversed (concave anteriorly) lenses.
  • To assess the utility of these spectacles in reducing vertex distance and enhancing the field of view for microscopic and telescopic applications.
  • To determine the efficacy of these spectacles for astronomers, particularly those with uncorrectable astigmatism via contact lenses.

Main Methods:

  • Fabrication of specialized spectacles featuring reversed lens orientation (concave anteriorly).

Related Experiment Videos

  • Testing the spectacles with microscopic and telescopic eyepieces.
  • Evaluating the impact on vertex distance and the useful field of view.
  • Assessing performance in correcting astigmatism for astronomers unable to use contact lenses.

    • Main Results:

    • The reversed-lens spectacles offered limited benefits for microscopy applications.
    • These spectacles were found to be essential for astronomers requiring astigmatism correction not achievable with contact lenses.
    • A reduction in vertex distance and an improved field of view were observed in specific applications.

    Conclusions:

    • Reversed-lens spectacles represent a specialized optical solution with significant utility in specific astronomical contexts.
    • While not universally applicable to microscopy, this design addresses a critical need for visual correction in observational astronomy.
    • The findings highlight the potential of custom optical devices to overcome limitations in existing vision correction technologies.