I don't want to spend all that money on expensive laser goggles but I am worried about safety. I would like to know if a shape 13 welding lens would protect against lasers emitted by a SLD1239JL-54 laser diode at over 200 mW? Without safety goggles would simply avoiding direct eye exposure be good enough for not dameging the eye or would simply seeing a laser without it shining directly in the eye still harm you?