For today’s edition of Dear Mark, we’ve got a quick two-parter. First, I discuss the pros and cons of ocular sunlight exposure in children (and adults). Should kids leave the house with a pair of wraparound goggles every single time, or are their prepubescent eyes safe without them? If too much sun exposure is bad, is none the best? Then, we cover the pros and cons of getting a vasectomy. Are there real health risks, like increased chances of cancer and/or heart disease? Will you lose functionality down there and experience a drop in testosterone?