Your choice of contact lens should take into account your lifestyle and safety. Depending on the type of sport you enjoy bear in mind the following pointers: Soft lenses tend to stay put better than gas-permeable lenses or spectacles. Squash is particularly dangerous to the eyes as the ball is just the right size to fit into the orbit (the bony depression in the skull where your eye is positioned) so you still need to protective eyewear over your contact lenses. Contact lenses are probably not ideal for swimming as you would need to wear tight-fitting goggles over the lenses to prevent them from becoming dislodged (and some people believe that eye infection is encouraged by swimming in soft lenses). As you are going to need to wear goggles, it is probably worthwhile investing in some prescription swimming goggles and then you don’t have to worry about losing your contact lenses.