What causes the whites of the eyes to turn yellow?

Under normal circumstances, yellowing of the whites of the eyes may be caused by individual differences, pinguecula, age-related macular degeneration, chronic hepatitis, diabetes, or other reasons. If any discomfort occurs, it is recommended to seek immediate medical attention. Specific explanations are as follows:

1. Individual differences: Variations in the color of the sclera (whites of the eyes) can occur due to individual physiological differences. In some people, the sclera may naturally appear slightly yellow, which is a normal physiological phenomenon.

2. Pinguecula: Pinguecula is a common eye surface condition characterized by brown or yellowish-brown patches around the conjunctiva near the cornea. The color of these patches may affect the overall appearance of the sclera, making it look slightly yellow. Treatment may involve surgical excision of the pinguecula under microscopic guidance.

3. Age-related macular degeneration: This is an age-related eye disease primarily affecting the macula, potentially leading to vision loss. Although it mainly affects central vision, it may indirectly cause the whites of the eyes to appear slightly yellowish. Treatment options include laser photocoagulation, which should be administered under medical supervision.

4. Chronic hepatitis: Chronic hepatitis can lead to jaundice, a condition in which bilirubin accumulates in the skin and mucous membranes due to impaired liver function, resulting in yellowing of the sclera and skin. Patients are advised to follow medical instructions and use medications such as recombinant human interferon α2b injection, bicyclol tablets, and Anluohuaxian pills to manage the condition.

5. Diabetes: Diabetes can lead to eye complications such as diabetic retinopathy, which may alter the appearance of the eye. Additionally, diabetes may contribute to systemic jaundice, causing the sclera to appear yellow. Patients may be prescribed medications such as insulin glargine injection, acarbose capsules, and insulin aspart injection under a doctor's guidance.

In daily life, maintaining a light diet and practicing proper eye care are recommended to support overall eye health.