Puffy eyes can be caused by several factors, including:

• Aging: As you age, the muscles and tissues around your eyes weaken, and the fat that supports your eyes can move into the lower eyelids, causing them to appear puffy.

• Fluid retention: Fluid can accumulate below your eyes, causing them to look swollen. This can be caused by a high-salt diet, especially upon waking or after a salty meal.

• Lack of sleep: Not getting enough sleep can cause your eyes to appear puffy.

• Allergies: Congestion and inflammation from allergies can sometimes exacerbate under-eye puffiness.

• Smoking: Smoking can cause your eyes to appear puffy.

• Genetics: Having under-eye bags can be a physical characteristic that runs in your family.

• Medical conditions: Some health conditions such as thyroid problems can cause the eyes to become swollen.

Puffy eyes are usually a cosmetic concern and rarely a sign of a serious condition. However, if you experience persistent or bothersome under-eye puffiness, you should consult a healthcare provider to rule out other possible causes that can contribute to the swelling, such as infection, connective tissue disease, or an allergy. At-home remedies, such as cool compresses, can help improve the appearance of puffy eyes. For persistent or bothersome under-eye puffiness, eyelid surgery may be an option.