Night myopia: cause and a possible basis for amelioration.

  title={Night myopia: cause and a possible basis for amelioration.},
  author={D. Alfred Owens and H. W. Leibowitz},
  journal={American journal of optometry and physiological optics},
  volume={53 11},
The relationship between night myopia under simulated night driving conditions and the dark focus accomodation 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… CONTINUE READING