Why Do the Whites of the Eyes Appear Blue?
Disease description:
For the past two days, every time I’ve looked in the mirror, something about my eyes has seemed off. Today, I noticed that the whites of my eyes appear slightly bluish, although my vision remains completely normal. I’d like to know: what causes the sclera (whites of the eyes) to appear blue?
Doctor's answer (1)
Dr. Fu Qing
Hello, under normal circumstances, the whites of the eyes (sclera) should not appear blue. If bluish discoloration of the sclera is observed, several potential underlying causes must be considered—thus, prompt medical evaluation and targeted treatment are essential.
The first possible cause is thinning of the sclera, which allows the underlying dark choroidal tissue to show through, resulting in a bluish hue.
The second possibility is iron-deficiency anemia, which can lead to scleral bluing due to reduced hemoglobin levels and associated connective tissue changes.
The third potential cause is parasitic infection, though this is relatively rare and would typically present with additional systemic or ocular symptoms.
We hope this information is helpful. Wishing you good health and happiness!
