NIGHT MYOPIA: CAUSE AND A POSSIBLE BASIS FOR AMELIORATION

The relationship between night myopia under simulated night driving conditions and the dark focus of accommodation was examined. Over a range of luminance and contrast conditions typical of the night driving situation, college-age subjects accommodated to about one-half the difference between a distant simulated road sign and their individual dark focus. Subsequent laboratory and field experiments demonstrated that: (1) a negative correction equal to one-half the value of the dark focus significantly improved night visual performance as compared with their normal or full dark-focus correction, and (2) greater improvements in performance were obtained for subjects who exhibited a relatively near dark focus. /HSRI/

• Supplemental Notes:
  • Sponsored by National Institute of Mental Health and presented at the Annual Meeting of the American Academy of Optometry, December 1975, Columbus, Ohio.
• Corporate Authors:

  American Academy of Optometry

  6110 Executive Boulevard
  Rockville, MD  United States  29852
• Authors:
  • Owens, D A
  • Leibowitz, H W
• Publication Date: 1976-11

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 709-717
• Serial:
  • American Journal of Optometry & Physiological Optics
  • Volume: 53
  • Issue Number: 11
  • Publisher: American Academy of Optometry

Subject/Index Terms

• TRT Terms: Brightness; Driving; Field tests; Laboratory tests; Night vision; Simulation; Traffic signs
• Uncontrolled Terms: Driving conditions
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00148985
• Record Type: Publication
• Source Agency: Highway Safety Research Institute
• Contract Numbers: MH08061
• Files: TRIS
• Created Date: Apr 27 1977 12:00AM