If you suffering from chronic dry eyes, eating more food contains with Vitamin A will help you. Vitamin A is a group of antioxidant compounds with a long list of benefits for vision, bone development and the growth and repair of body tissue. It is shown that lack of Vitamin A will cause dry eyes. So, you can eat some food with rich Vitamin A supplements to help you release dry eyes.
I know vitamins are good for eye health. Vitamin A can help maintain eye health. Lack of vitamin A can lead to night blindness. So we should intake enough vitamin A every day in order to keep our eyes healthy. But I am not sure what vitamins are good for chronic dry eyes. You can go to see a doctor who will tell you what vitamins are good for chronic dry eyes. So just take the doctor's advice.
First I suggest that you should take enough vegetable and fruit in your daily life. As for vitamins, Vitamin A should be your first choose because it is good for vision and bone development. Vitamin C also should be taken into account as it is an anti-oxidational kind which can make you eyes feel soft and wet. So here I just point out two kinds of vitamins for you reference, and I strong propose that you can take enough water every day.