27. Wolffsohn J.S., Cochrane A.L., Khoo H. et al. Contrast is enhanced by yellow lenses because of selective reduction of shortwavelength light. Optom Vis Sci 2000; 77: 73-81.

27. Wolffsohn J.S., Cochrane A.L., Khoo H. et al. Contrast is enhanced by yellow lenses because of selective reduction of shortwavelength light. Optom Vis Sci 2000; 77: 73-81.