“Showering in contacts is risky,” Dr. James Kelly, an ophthalmologist and founder of Kelly Vision, told HuffPost. “Tap water is not sterile and can contain harmful microorganisms, just like natural ...

The most concerning is Acanthamoeba keratitis, a rare but potentially vision-threatening infection that can cause severe pain, corneal ulcers and even blindness.” Bacteria like Pseudomonas ...