What causes red eyes?
Apr 26, 2024
Source: Cainiu Health
Dr. Wang Shuai
Introduction
In general, red eyes may be caused by eye strain, foreign body intrusion, conjunctivitis, keratitis, or iridocyclitis. Patients should promptly visit a正规 hospital to determine the cause and receive appropriate treatment. It is important to properly care for your eyes in daily life, avoid prolonged intense focus, get adequate rest, and ensure sufficient sleep.
Under normal circumstances, red eyes may be caused by eye strain, foreign body intrusion, conjunctivitis, keratitis, or iridocyclitis. Patients should promptly visit a qualified medical facility to determine the underlying cause and receive appropriate treatment. Specific analysis is as follows:
1. Eye strain
When using electronic devices such as mobile phones or computers for extended periods, or engaging in prolonged reading or writing, the eyes may become fatigued and congested due to overuse, leading to redness. It is recommended to rest the eyes regularly by looking into the distance or performing eye exercises at intervals to reduce eye fatigue.
2. Foreign body intrusion
When dust, sand, or other tiny particles enter the eye, they may irritate ocular tissues and cause redness. In such cases, rinsing the eye with clean water or saline solution may help remove the foreign object.
3. Conjunctivitis
Conjunctivitis is a common eye inflammation usually caused by bacterial or viral infections, or allergies. When the conjunctiva becomes infected or irritated, it triggers an inflammatory response, causing blood vessels in the eye to dilate and become congested, resulting in red eyes. Under medical guidance, patients may take oral medications such as levofloxacin hydrochloride tablets, acyclovir tablets, or loratadine tablets for treatment.
4. Keratitis
Keratitis is an inflammation of the corneal tissue, which may result from bacterial, viral, or fungal infections, or from physical injury or chemical irritation. Keratitis causes corneal congestion, making the eye appear red, and is often accompanied by symptoms such as pain, light sensitivity, and tearing. As directed by a physician, patients may use medications such as tobramycin eye drops, ofloxacin eye drops, or amoxicillin capsules.
5. Iridocyclitis
Iridocyclitis is an inflammation of the iris tissue, which may be caused by microbial infections (such as bacteria, viruses, or fungi), autoimmune reactions, or systemic diseases. This condition leads to iris congestion, causing the eye to appear red, along with symptoms like pain and blurred vision. Under medical supervision, patients may use medications such as ibuprofen sustained-release capsules, acetaminophen tablets, or azelastine hydrochloride tablets for treatment.
Routine eye care is important. Avoid prolonged focus and ensure adequate rest and sufficient sleep. In daily life, avoid rubbing the eyes with hands to prevent infection.
