This animation by Visible productions explains the process by which we see and how imperfections in the cornea result in nearsightedness, farsightedness and astigmatism. It also shows how lasik surgery is performed to correct these conditions.

To view an animation that explains how aging affects our vision, click here.

To learn what causes cataracts, and how they are normally treated, click here.

Sponsored by Abbott Medical Optics - for more information click here. Animation produced by Visible Productions Inc.

100-Calorie Spicy Potato Chip Recipe

You don't have to resist this low-calorie snack!

The Dish at Home gives you a snack you don't have to resist with these low-calorie spicy potato chips.