What Causes Yellowing of the Eyes?
Nov 21, 2021
Source: Cainiu Health
Dr. Wang Shuai
Introduction
In most cases, yellowing of the eyes may result from dietary factors, aging, conjunctivitis, alcoholic liver disease, or bile duct stones. If you experience any discomfort, seek medical attention promptly. In daily life, maintain healthy lifestyle habits and avoid spicy or irritating foods—such as Sichuan pepper, chili peppers, and garlic—as they may impede recovery.
Generally, yellowing of the eyes (scleral icterus) may result from dietary factors, aging, conjunctivitis, alcoholic liver disease, or bile duct stones. If you experience any discomfort, prompt medical evaluation is recommended. A detailed analysis follows:
1. Dietary Factors
Consuming large quantities of carotene-rich foods—such as pumpkin, carrots, and oranges—over a short period, or taking medications like quinacrine or nitrofuran derivatives, can elevate serum carotene levels. Excess carotene deposits in the skin and sclera, causing yellow discoloration. Discontinuing the implicated foods or medications and increasing fluid intake to enhance metabolic clearance typically leads to spontaneous resolution of symptoms within 1–2 weeks.
2. Aging
With advancing age, fatty deposits and pigments gradually accumulate in the conjunctival tissue, reducing its transparency. This results in progressive yellowing and dullness of the sclera. This is a normal part of physiological aging and generally does not impair vision or ocular function. No specific treatment is required; however, routine eye care—including avoiding visual strain and undergoing regular ophthalmologic examinations—is advisable.
3. Conjunctivitis
Conjunctivitis—caused by bacterial or viral infection or allergic reactions—triggers conjunctival inflammation, leading to hyperemia, edema, and increased discharge. In some cases, yellowish discoloration arises during the absorption phase of subconjunctival hemorrhage, when ruptured red blood cells release hemoglobin, which subsequently breaks down into hemosiderin (an iron-containing pigment). Treatment, under physician guidance, may include topical agents such as levofloxacin eye drops (for bacterial conjunctivitis), acyclovir eye drops (for viral conjunctivitis), or sodium cromoglicate eye drops (for allergic conjunctivitis).
4. Alcoholic Liver Disease
Prolonged, heavy alcohol consumption damages hepatocytes, impairing the liver’s ability to uptake, conjugate, and excrete bilirubin. Consequently, serum bilirubin levels rise, resulting in jaundice—including yellowing of the eyes—and associated symptoms such as fatigue, anorexia, and right upper quadrant discomfort. In severe cases, cirrhosis may develop. Management requires strict abstinence from alcohol, nutritional support, and supplementation with vitamins and protein.
5. Bile Duct Stones
Stones obstructing the bile duct impede bile flow, causing bile reflux into the bloodstream and elevated serum bilirubin—leading to obstructive jaundice. Clinical manifestations include yellowing of the skin and sclera, pruritus, dark urine, and pale (clay-colored) stools, often accompanied by right upper quadrant pain and fever. Prompt medical consultation is essential; definitive treatment typically involves surgical intervention, such as choledocholithotomy, performed under physician supervision.
Maintain healthy lifestyle habits: avoid spicy and irritating foods—including Sichuan pepper, chili peppers, and garlic—as they may hinder recovery.
