this was a cross-sectional case-control study in which the effect of night-time ambient light on prevalence of myopia in patients with a history of exposure to night-time light during sleep throughout the first three years of their lives was investigated in 2008. two hundred children aged 3-15 years who were brought to our eye clinic at boo-ali hospital for ophthalmic examination investigated a...

Breast cancer is the most common malignancy among women, both in the developed and developing countries. Women with mutations in the BRCA1 and BRCA2 genes have an increased risk of breast and ovarian cancers. Recent studies show that short-wavelength visible light disturb the secretion of melatonin and causes circadian rhythm disruption. We have previously studied the health effects of exposure...

research has shown that shift work, in particular night work, can have negative effects on the health, safety and well-being of workers. our study assessed, in a hospital setting, the effects of bright light (bl) on general health and psychological problems during night shift work. in an experimental design, 15 female nurses at a general hospital that located in tehran were exposed to moderate ...

In the previous paper (Barlow, 1962) a method for determining the quantum efficiency of vision was described. In the present paper some results obtained on human parafoveal scotopic vision are reported. There are many experimental parameters involved in an estimate of overall quantum efficiency: for the stimulus these are the area, duration, intensity, retinal location, colour, and the relative...