Why do tears turn yellow? This question often arises when individuals notice their tears taking on an unusual hue. The phenomenon of yellow tears, also known as “icterus of the eyes,” is a subject of intrigue and curiosity. In this article, we will explore the reasons behind this occurrence and shed light on the science behind it.
Tears are produced by the lacrimal glands, which are located above the outer corners of the eyes. These glands secrete tears to keep the eyes moist, clean, and protected from foreign particles. Typically, tears are clear and colorless, but under certain circumstances, they can appear yellow.
One of the primary reasons for tears turning yellow is the presence of bilirubin. Bilirubin is a yellowish pigment that is produced when red blood cells break down. Normally, bilirubin is processed by the liver and excreted in the bile. However, if the liver is not functioning properly, bilirubin can accumulate in the bloodstream and eventually reach the eyes, resulting in yellow tears.
Jaundice, a condition characterized by yellowing of the skin and eyes, is often associated with elevated bilirubin levels. While jaundice is a common symptom of liver disease, it can also be caused by other factors, such as certain medications, infections, or even genetic disorders. When bilirubin accumulates in the eyes, it can give tears a yellowish tint.
Another reason for yellow tears is the presence of a foreign object or infection. For instance, if a particle gets stuck in the tear duct or an eye infection occurs, it can lead to the production of yellow tears. In these cases, the yellow color is a result of the body’s immune response to the foreign invader or infection.
It is important to note that yellow tears are not always a cause for concern. Sometimes, the yellowing is temporary and can be attributed to factors such as exposure to bright lights, excessive crying, or even a lack of sleep. However, if the yellowing persists or is accompanied by other symptoms, such as eye pain, blurred vision, or swelling, it is essential to consult a healthcare professional.
In conclusion, the yellowing of tears can be attributed to various factors, including bilirubin accumulation, foreign objects, or infections. While this phenomenon may be alarming, it is usually not a sign of a serious underlying condition. Nonetheless, if yellow tears persist or are accompanied by other symptoms, it is crucial to seek medical advice to ensure proper diagnosis and treatment.
