Well, generally speaking, it is terrible and dangerous to have pepper spray to get into your eyes. In common, for the symptoms, your eyes will feel uncomfortable and burning. In some cases, eye pain may be possible too. To get rid of it, the first thing you should do is to have some pure, cool water to wash your eyes carefully, and so that it can just wash pepper out. And then, some cool tea bags or ice can be applied to your eyes. In that way, it will just be effective to relieve your symptom. Of course, you should take some measures quickly, or it will just irritate your eyes, leading to further heavy problems. Anyway, just be careful about it.
Just rinse your eyes with clean water for 15 minutes or more. Flush the pepper spray out of your eyes. I know how it hurt, but you can only wait until the burning go away itself after flushing. Don't forget to clean your hands thoroughly. Avoid rubbing your eyes with your hands where there may be pepper spray left. You will be fine. Don't worry.
I am sorry to hear that. We will occasionally get some foreign stuff into our eyes. When a bit of hot pepper enters your eyes, you will inevitably feel irritated and keep watering and burning. Washing it out with vinegar or milk is a common sense when you some irritated things in your eyes. I also recommend to rinse with saline solution or vegetable oil. Besides, it is wise to chill your eye by holding some cool agents or run cold water over it, as they can dilate the veins and increase the blood flow, and then help to produce more tears in order to take away the pepper. By the way, the pepper is not a wate-soluable substance, you can not flush with the water. However, once all your endeavors do not work, you can take Visine into consideration, I mean, see your doctor and get some medicine.