Carsten column: Ultraviolet light and dog eyes

Carsten column: Ultraviolet light and dog eyes
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Colorado is well known for its sunshine, with 245 to 285 sunny days each year. With all that sunshine comes blue skies and plenty of ultraviolet light, or UV. At Colorado’s high altitude, UV exposure is estimated to be 20% to 30% higher than at sea level. That matters because UV exposure can c...