What causes red, watery eyes in conjunctivitis?
Jun 29, 2022
Source: Cainiu Health
Dr. Cui Xin
Introduction
For conjunctivitis (“pink eye”) with red, watery eyes, symptomatic treatment with antiviral or antibacterial medications is recommended. If conjunctival hemorrhage occurs in this context, it is typically caused by eye rubbing or vigorous wiping, leading to rupture of conjunctival blood vessels. Subconjunctival hemorrhage is generally benign and rarely leads to serious complications—similar to a skin abrasion—and usually resolves spontaneously without worsening the underlying condition.
Conjunctivitis (commonly known as “pink eye”) is a common ocular infectious disease, but it is not frightening. Maintaining good eye hygiene in daily life—such as avoiding sharing handkerchiefs or using them to touch the face and eyes—can significantly reduce the risk of infection. So, what causes the “red discharge” from the eyes in cases of conjunctivitis?
What Causes Red Discharge from the Eyes in Conjunctivitis?
Red discharge from the eyes in conjunctivitis is typically managed with antiviral or antibacterial medications, depending on the underlying cause. If the red discharge is due to subconjunctival hemorrhage, it usually results from eye rubbing or vigorous wiping, which ruptures small blood vessels in the conjunctiva. Subconjunctival hemorrhage is generally benign and rarely leads to serious complications—it is analogous to a skin abrasion. The blood is gradually reabsorbed over time without requiring specific treatment. It does not worsen the underlying conjunctivitis, is typically painless and non-itchy, and does not impair vision. Therefore, even when conjunctivitis is accompanied by subconjunctival hemorrhage, standard treatment for conjunctivitis remains appropriate. Over time, the hemorrhage will resolve spontaneously.
The public should pay close attention to personal hygiene—especially hand cleanliness—and avoid touching or rubbing the eyes with unwashed hands. Towels, washbasins, and handkerchiefs must be used exclusively by individuals. Washing the face with running tap water is recommended. After examining or treating patients, healthcare providers must thoroughly disinfect their hands and instruments with 75% alcohol before attending to other patients, to prevent iatrogenic transmission.
In daily life, cultivating healthy lifestyle and dietary habits can help lower the risk of developing or exacerbating illness. We hope this information has been helpful to you.
