[1] While some degree of puffiness may be normal for a given individual, factors such as age and fatigue may make the swelling more prominent.
The periorbital tissues are most noticeably swollen immediately after waking, perhaps due to the gravitational redistribution of fluid in the horizontal position.
For someone predisposed to eye puffiness, changes to diet and lifestyle (under the supervision of a physician) may be required to reduce the possibility of swelling.
[9] Elevating the head while sleeping can prevent the gravitational redistribution of fluid that is associated with eye swelling.
Eating foods rich in vitamins, especially A, C and E, helps to reduce eye puffiness and to maintain clear, moist skin.