At first, don't be worried. You are supposed to know that it's quite normal for many people to see stars when they do cartwheels. There is a scientific explanation. When you do some cartwheels, the blood would flow from the capillaries back into the brain, which might press the visual nerves even give rise to encephalemia. And after you stand up on your feet again, a transient inadequacy of hematic offering to the head happens, thus it's natural to see stars or light spots with colors. However, this symptom is a instances of a issue, you might have an anaemia in fact. Therefore, i suggest that you should go to see a doctor and have a physical examination to make sure whether you are in good condition. Hope you accept my proposal.
Yes, this is the sign of your eye problems. Usually you will not see stars when you do cartwheels. There must be the infection for your eyes. That is the main reason to cause the stars in your eyes. You should go to the hospital to have a full check on the eyes. Or else, your eye problem may get serious.
Well, it seems that you like to do some exciting sports from time to time. So, what you need to know is that we have stars in front of our eyes because there is temporary less oxigen to our brains, or because we have got anemia. However, stars in front of our eyes could be some signs of diseases. So, if you constantly have stars, I recommend you consult a doctor and get a medical examination.