Sharing lenses transfers bacteria and can lead to severe infections.

Do not exceed the recommended wear time (e.g., daily vs. monthly). Most experts recommend wearing colored lenses for shorter periods than clear ones to avoid irritation.

These feature a solid layer of color that completely masks your natural iris. This is the best choice if you have dark eyes and want to switch to a lighter color like blue or gray, or for theatrical "costume" effects like cat eyes. 2. The Essential First Step: Get a Prescription

These have a very faint blue or green tint. They are designed only to help you see the lens in its case or if you drop it; they do not change your eye color.

To ensure the lenses look natural and flattering, consider your skin tone and hair color.