1. The problem statement, all variables and given/known data If you dive without goggles, you can't see very clearly. Why? 2. Relevant equations 3. The attempt at a solution I guess the reason is water around the eyes refracts the ray so that the image produced in the eye is blur. Right? But why when using goggle we can see clearer? There is also refraction occurs when light travels from water to the goggle, so why the image produced isn't blur?