Some Obscurish facts
#1582
The next generation of sunglasses may be eyedrops. The best sunglasses block only 60 - 95 percent of dangerous ultraviolet rays. Neville A. Baron has invented eyedrops that block 98 percent of ultraviolet for two to four hours, yet do not affect vision.
The next generation of sunglasses may be eyedrops. The best sunglasses block only 60 - 95 percent of dangerous ultraviolet rays. Neville A. Baron has invented eyedrops that block 98 percent of ultraviolet for two to four hours, yet do not affect vision.