When you gaze lovingly into the depths of your dog’s soulful brown eyes, you realize that they are looking a bit cloudy. Come to think of it, he doesn’t notice the squirrels taunting him from across the yard anymore, and the treat you threw for him yesterday bounced off his nose, instead of being effortlessly [...]

You are jamming to your favorite tunes as you cruise along the highway, when suddenly you hear the telltale “thud” of a piece of gravel bouncing off your windshield, taking out a chunk of glass. If you pretend your car is an eye, and the windshield is the cornea (i.e., the clear portion at the [...]