What does it mean when there are red blood vessels in the white part of the eye?

Generally, red blood vessels in the white part of the eye may result from physiological factors or pathological conditions such as dry eye syndrome and keratitis. A detailed analysis is as follows:

I. Physiological Factors

Prolonged use of electronic devices late into the night or reading under dim lighting can easily cause eye fatigue and lead to congestion of the superficial capillaries in the eyeball. This results in dry, irritated eyes accompanied by visible red blood vessels. Applying local cold compresses can help constrict blood vessels and reduce redness, while ensuring adequate sleep can alleviate symptoms.

II. Pathological Factors

1. Dry Eye Syndrome

Insufficient tear production leads to an unhealthy tear film on the ocular surface and excessive evaporation of tears, causing symptoms such as dry eyes, photophobia, and red blood vessels. It is recommended to use sodium hyaluronate eye drops, fluorometholone eye drops, or polyvinyl alcohol eye drops locally under medical guidance to promote tear secretion and improve symptoms.

2. Keratitis

When the cornea becomes infected by pathogenic bacteria, inflammation causes congestion and dilation of the conjunctival capillaries, leading to eye pain, redness, and swelling. Under medical supervision, it is advised to apply topical medications such as gatifloxacin eye drops, tobramycin eye drops, or erythromycin eye ointment to control inflammation and reduce redness.

In addition, glaucoma could also be a potential cause. If symptoms persist for a prolonged period without improvement, it is important to promptly visit a reputable hospital for appropriate diagnostic evaluations and suitable treatment.