Instrument Myopia—Microscopy*

  title={Instrument Myopia—Microscopy*},
  author={O. Richards},
  journal={Optometry and Vision Science},
  • O. Richards
  • Published 1976
  • Medicine
  • Optometry and Vision Science
  • &NA; Looking through optical instruments stimulates the eye to accommodate more than would be necessary for naked eye viewing; this increased near power is called instrument myopia. The amount (up to ‐5 diopters) varies with the observer and the conditions of viewing. Using microscopes produces ‐1.5 to ‐2 diopters of instrument myopia. More instrument myopia is found with low‐power magnification, inexperienced users, and when focusing from minus blur to sharp image. Physiologically, the… CONTINUE READING
    17 Citations

    Topics from this paper

    Objective real-time measurement of instrument myopia in microscopists under different viewing conditions
    • 7
    • Highly Influenced
    Relationship among accommodation, focus, and resolution with optical instruments.
    • J. C. Kotulak, S. E. Morse
    • Computer Science, Medicine
    • Journal of the Optical Society of America. A, Optics, image science, and vision
    • 1994
    • 16
    • PDF
    Instrument myopia conceptions, misconceptions, and influencing factors
    • 26
    • Highly Influenced
    Night myopia and driving
    • 2
    Analysis of head position used by myopes and emmetropes when performing a near-vision reading task
    • 11