How to see when you're swimming is a common problem that arises for prescription glasses wearers.There are several ways to let you see whilst swimming, you just have to decide what will be the most suitable for you! You also need to consider the amount of time you spend in the water. A casual swimmer having a float around the pool on hols will want something different to a potential Olympic Athlete! If you wear contact lenses, you can have goggles over the top of your lenses. Theoretically you can swim in contacts, but they could get washed out of the eye.