Adam Crockett lay death-still and unblinking as a doctor pushed a needle into his right eyeball and withdrew built-up fluid. With that task complete, the doctor at the Cole Eye Institute in Cleveland pushed a second needle deep into the back of Crockett’s eye, all the way to the retina. Stopping...

If you’re worried you’ll wake up deathly ill after eating a fish dinner tonight, you should realize the culprit probably won’t be PCBs, dioxins, mercury, pesticides or other harmful contaminants listed in state and federal fish-consumption advisories. Yes, you should heed the agencies’ advice, but...