As for the health effects uv light that causes skin redness, burning eyes and corneal ulcers. So should install a lamp above eye level or above (dumyahn and first, 1999).
Regarding the health impact of UV light to cause skin symptoms are redness and burning sensation in the eyes, corneal incision. Therefore, the lamp should be installed above the eye level and above (First and Dumyahn, 1999).
the matter of health impact UV light that will cause Skin itching eyes, it was the red glass eyes, and there was a scar, so you should install a lamp above eye level (and Dumyahn First, 1999 ).