One reason is dehydration.
You drink more water.
1) Take almond oil with cream & apply under the eyes with little massage.
2) Take potato, make thin slice & close your eyes put one slice on each eye for 15 minutes. After this up to 3 hours the circle will disappear.
3) When you read, the light should always come behind from the shoulder.
Inshallah you will be oaky.