Diplopia is when you see two of everything instead of just one. Imagine looking at your mommy and daddy, but instead of seeing one of each, you see two of them! This can be very confusing and scary.
Your eyes work together to see things properly, and diplopia happens when they don't work together. When you look at something, both of your eyes should be pointing at the same thing at the same time. That's how you see a clear and single image. But sometimes, one eye may be looking in a different direction, and this can cause diplopia.
There are different causes of diplopia, and some of them can be serious. Sometimes, it can be caused by a problem in your eyes, like a muscle weakness or damage to your eye nerves. Other times, it can be caused by a problem in your brain, like a stroke or a tumor.
If you ever experience diplopia, you should tell your grown-up right away, and they can help you see a doctor. The doctor will check your eyes and brain to find out what's causing the diplopia. They may give you special glasses or patches to wear to help you see things properly. If your diplopia is caused by something more serious, they may give you other treatments.
Remember, if you ever see two of something instead of one, don't be afraid to tell your grown-up. They'll help you see a doctor to make sure everything is okay.