Aversion to light is common among migraineurs undergoing acute attacks. Using psychophysical assessments in patients with episodic migraine, we reported that white, blue, amber, and red lights exacerbate migraine headache in a significantly larger percentage of patients and to a greater extent compared with green light.
Read MoreChicago dials down LED street lamp intensity — and controversy
As the city of Chicago begins converting more than a quarter-million street lamps to high-efficiency LEDs, the light — and public reaction — hasn’t been as harsh as what was seen in cities that were earlier adopters.
Read MorePhotosensitivity in cutaneous lupus erythematosus
Ultraviolet radiation (UVR) is a well‐known exacerbating factor for cutaneous lupus erythematosus (CLE), with photosensitivity comprising one of the American College of Rheumatology (ACR) diagnostic criteria for systemic lupus erythematosus (SLE). However, discerning true photosensitivity in this population is difficult due to the broad language utilized by the ACR and the delayed‐onset nature of photosensitive lupus lesions.
Read MoreThe risk to normal and photosensitive individuals from exposure to lightfrom compact fluorescent lamps
Light is a basic requirement for life on earth. The sun sustains life and is still the major source of lighting for humankind. It is an atomic furnace that turns mass into energy. Each second, four million tons of mass is discharged into space as energy, although, the earth receives only about two billionths of this.
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