How do I tell if I my contact lenses are inside out before I put them in?

Place the lens on the top of your finger and look at the edge curve. It should be a regular semi-circle in shape - if the lens edge has a lip to it, it's probably inside out.

If the lens is inside out, place it in the palm of your hand, add a few drops of solution and gently turn the lens the right way round. Check the lens for any dust and rinse if it you need to before reinserting.