👉 Attaneuria is a condition where the skin on the eyelids appears blue, often due to an imbalance in pH levels within the eye or a condition affecting the iris. This condition can be caused by various factors such as dry eyes, allergies, or certain medications. It typically occurs when the moisture content of the aqueous humor (eye solution) is low, leading to an increase in the concentration of hydrogen peroxide and other substances that contribute to the blue coloration.