you could probably find a study that finds that taking a shit every day increases your risk of getting cancer. it's just a matter of how much of an increase it really causes.....
on a side note, if you're working with anything above 10,000 lumens per square foot, i suggest using both EYE and SKIN protection.
10,000 is how bright it gets outside during the summer, give or take a few.... so anything brighter is just not conditions you'd find in nature on earth, and proper precautions should be taken.....