what causes rings around eyes
Allergies, asthma, and eczema. Any condition that causes the eyes to itch can contribute to darker circles due to rubbing or scratching the skin around them. Hay fever sufferers in particular will notice under-eye smudges during the height of the allergy season. Some food allergies can also cause the area under the eyes to appear darker.
Blue Circles. The cause: Blue circles result from oxygenated blood pooled beneath the under-eye skin. Skin here is very thin and almost transparent, so blood shows through. This is more noticeable in the morning: When weâve been horizontal for a while, fluids accumulate and the veins expand to hold more blood.