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What causes excessive bloodshot eyes?

Dec 29, 2022 Source: Cainiu Health
Dr. Huang Lingjuan
Introduction
The main physiological causes of eye redness include unhealthy lifestyle habits, such as frequent overtime work, staying up late, excessive eye strain, or poor dietary habits like regular alcohol consumption, smoking, or eating other irritating foods, all of which can exacerbate eye redness. These cases typically do not require special treatment; you can improve the condition by changing your lifestyle and dietary habits. The most common pathological causes of eye redness are conjunctivitis or keratitis.

The physiological causes of red blood vessels in the eyes are mainly related to unhealthy lifestyle habits. For example, frequently staying up late due to overwork, eye strain, or poor dietary habits such as regular alcohol consumption, smoking, or eating spicy and irritating foods can all worsen eye redness. These cases typically do not require special treatment.

What Causes Excessive Blood Vessels in the Eyes?

You can improve the condition by adjusting your lifestyle and dietary habits. The most common pathological causes of eye redness are conjunctivitis or keratitis. When conjunctivitis or keratitis occurs, congestion of the bulbar conjunctiva appears.

Eye redness usually indicates inflammation in the surrounding tissues or within the eye itself. Common conditions include:

Conjunctivitis: Conjunctivitis is caused by bacterial or viral invasion of the conjunctiva. During inflammation, the blood vessels on the conjunctiva become congested and red. Some patients may also experience discharge. The blood flowing through these congested vessels helps fight bacteria, which may increase eye redness.

Keratitis: When the cornea becomes inflamed, the network of blood vessels around it dilates and becomes congested. Immune cells in the blood, such as white blood cells and lymphocytes, move toward the cornea to combat invading bacteria, potentially causing eye redness.

Iritis/Cyclitis (Uveitis): Also known as uveitis, this condition involves inflammation inside the iris. After inflammation occurs, blood vessels in the eye dilate, affecting superficial blood vessels as well, leading to increased eye redness.

Patients experiencing symptoms should seek timely medical attention at a hospital and receive treatment under a doctor's guidance.

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