A tint to reduce eye-strain from fluorescent lighting? Preliminary observations.
The rapid modulation of light from fluorescent lamps is responsible for eye-strain and headaches. The modulation is greater at certain wavelengths than at others, and it can therefore be reduced by wearing tinted spectacles. A tint was designed: (1) to minimize the luminous pulsation of light from conventional halophosphate fluorescent lamps; (2) to avoid as much as possible any concomitant increase in the pulsation from triphosphor lamps; (3) to interfere with colour perception as little as possible; and (4) to have a cosmetically acceptable colour appearance. The four design criteria conflict. A compromise design is described, together with case histories of patients who appear to have benefited from the use of the tint.
Wilkins
A J
AJ
Medical Research Council Applied Psychology Unit, Cambridge, UK.
Wilkinson
P
P
D000328:Adult; D000368:Aged; D001248:Asthenopia / Q000209:etiology / Q000517:prevention & control*; D003116:Color; D005139:Eyeglasses; D005260:Female; D005374:Filtration; D005453:Fluorescence; D006801:Humans; D008029:Lighting / Q000009:adverse effects*; D008875:Middle Aged; D013053:Spectrophotometry