What causes red blood vessels on the white part of the eye?
Dec 03, 2021
Source: Cainiu Health
Dr. Cui Xin
Introduction
What causes red blood vessels on the white part of the eye? Redness in the sclera (the white part of the eye) is most commonly due to infection. Observe the eyelids and check for any discharge upon waking. Yellow or yellowish-white discharge typically indicates a bacterial infection, whereas watery discharge usually suggests a viral infection.
In some individuals, the blood vessels in the eyes appear only faintly—just a few subtle red lines. Others have exceptionally clear, bright sclerae (the “whites” of the eyes), with sharp contrast between the sclera and the iris. In certain cases, prominent conjunctival redness may improve significantly after a night’s rest. So, what causes visible blood vessels on the white part of the eye? Let’s explore this further.
What Causes Red Blood Vessels on the Sclera?
Redness in the eye—often referred to as “bloodshot eyes”—is most commonly caused by infection. Careful observation of the eyelids and assessment of any ocular discharge upon waking are essential. The nature of the discharge helps determine the type of infection. Yellow or yellowish-white discharge typically indicates a bacterial infection; watery (serous) discharge usually suggests a viral infection; and stringy, mucoid discharge may point to either a fungal infection or an allergic reaction. However, in cases of allergy, intense itching is almost always present, often accompanied by eyelid swelling—and sometimes concurrent allergic rhinitis.
How to Reduce or Eliminate Red Blood Vessels in the Eyes
1. Use Eye Drops
When redness is accompanied by symptoms such as itching, dryness, or aching discomfort, lubricating eye drops can provide relief. Artificial tear solutions, for example, may be administered one or two drops per application, once or twice daily, to effectively hydrate the ocular surface and replenish moisture and nutrients. However, overuse should be avoided. It is advisable to consult a healthcare professional to select the most appropriate eye drop formulation for your specific condition, thereby minimizing the risk of adverse effects.
2. Anti-inflammatory Medications
Redness due to inflammation can be treated pharmacologically. Under medical supervision, anti-inflammatory medications may be prescribed to control inflammation and prevent its progression. Additionally, avoid excessive visual strain. Consciously blinking more frequently—ideally at least five times per minute—helps maintain ocular surface hydration and may effectively alleviate conjunctival redness.
The above outlines the common causes of red blood vessels on the sclera and offers practical management strategies. We hope this information proves helpful to you.
