Ophthalmology is the medical field that studies and takes care of the eyes. It is a doctor who looks after your eyes, so that you can see clearly. An ophthalmologist will check your eyes to make sure they are healthy and working correctly, and then they can help you with any problems that you might have, like vision problems or eye infections. They can also prescribe special glasses or contact lenses to help you see better. Any time you think something is wrong with your eyes, an ophthalmologist is a doctor you can go to for help.