Blood clot in the eye might freak you out a bit, but it is rarely a medical issue. Just by a strong sneeze or cough, a blood vessel in the eye can burst or even increased blood pressure may also cause these blood spots to appear on the eye. It causes conjunctiva when a tiny blood artery bursts just below your eye’s clear surface. It is usually a harmless condition that goes away in 2 weeks, but if it does not consult your doctor.

Red spot can be caused by:

  • Sneezing 
  • Coughing 
  • Vomiting
  • Excessive physical effort
  • Damage to the eye (trauma)
  • Irritability or allergic responses
  • Rubbing one’s eye vigorously
  • Excessive straining while using the restroom
  • Use of contact lenses