It is also known as subconjunctival hemorrhage if there is a blood vessel bursts in the eyes. This phenomenon occurs when the blood vessel breaks beneath the clear surface of the eye. And the clear portion of the eyes is not able to absorb the blood rapidly, thus to let others see the red marks in the eyes. And there is some causes that will cause red eyes including Strain, eye injury, diabetic eye disease, red eye and blood in the eye etc.
Blood vessels burst is just subconjunctival hemorrhage, because subconjunctival blood vessels are more fragile, it may break itself, or broken by external force. If you frequently have this symptom, you should consider whether you have high blood pressure, diabetes or other blood diseases. In general, subconjunctival hemorrhage does not need treatment, it will self-absorption in seven to fourteen days, and not leave any sequelae, but you should avoid rubbing eyes and any eye trauma, in order to prevent further bleeding. But if you have hypertension, diabetes or other blood disease, and subconjunctival hemorrhage often happens, this may be a warning, which reminds you to pay attention to your vascular status of your body. At this time, you should go to the hospital to have a detailed examination.
I don't know if you wear cosmetic contact lenses or nor, if you do. Stop wearing it for a couple of days. And you should drop some eyedrops to clean your eyes. It is important to protect your eyes, remember that fix clean your nails as often as possible , keep your hands clean before you wear cosmetic contact lenses. pay attention the health and eyedrop, your eyes will be ok.