Wearing poorly-fit contacts does not harm your eyes. Make certain your eyes are checked regularly by your ophthalmologist if you wear contact lenses. You do not need to have your eyes checked until you are in your 40s or 50s. Safety goggles are more trouble than they're worth. It's okay to swim while wearing soft contact lenses.
Children outgrow crossed eyes.
The sooner crossed or misaligned eyes are treated, the less likely the child will have permanently impaired vision. A cataract must be ripe before it can be removed. When a cataract keeps you from doing the things you like or need to do, consider having it removed. Cataracts can be removed with lasers. The cloudy lens must be removed through a surgical incision.