<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing burning and stinging in my eyes, and my vision seems to have diminished. I also see spots and clouds in my vision, and my eyes are watering constantly.  <response>: Based on your symptoms, it seems like you have dry eye of unknown cause. This is a common condition where your eyes dont produce enough tears or the quality of your tears is poor. 