What causes redness in the outer corner of the eye?

Under normal circumstances, redness in the inner corner of the eye may be caused by various factors such as environmental conditions, eye strain, conjunctivitis, chronic dacryocystitis, and hypertension. It is recommended to seek medical attention promptly, identify the underlying cause, and receive appropriate treatment under the guidance of a qualified physician. Specific analysis is as follows:

1. Environmental Factors

Extended exposure to dry, windy, sandy, or polluted air can lead to eye dryness and subsequent corneal congestion. Artificial tear eye drops, such as sodium hyaluronate eye drops or polyethylene glycol eye drops, can be used to moisturize the eyes and relieve dryness.

2. Eye Strain

Prolonged focus on electronic devices like computer screens or smartphones without adequate rest can result in eye fatigue and redness. Using eye-protection software to adjust screen brightness and contrast may help reduce eye strain.

3. Conjunctivitis

Conjunctivitis may be caused by infections from bacteria, viruses, or chlamydia. Inflammatory mediators stimulate the blood vessels in the conjunctiva, causing them to dilate and become congested, leading to redness in the inner corner of the eye. This condition may also involve eye pain and photophobia. Treatment may include prescription medications such as levofloxacin eye drops, ofloxacin eye ointment, or acyclovir eye drops, as directed by a doctor.

4. Chronic Dacryocystitis

Chronic dacryocystitis is caused by bacterial infection, and purulent discharge can irritate the conjunctival tissue in the inner corner of the eye, resulting in vascular dilation and congestion. Symptoms often include excessive tearing and increased discharge at the inner corner of the eye. Under the guidance of a healthcare professional, medications such as compound sulfamethoxazole tablets, tobramycin eye drops, or erythromycin eye ointment may be used to alleviate symptoms.

5. Hypertension

Hypertension is generally related to stress, diet, and other factors, leading to elevated blood pressure throughout the body, including in the ocular blood vessels. Prolonged high pressure may damage vessel walls, causing congestion or bleeding in the eye. Other typical symptoms of hypertension, such as dizziness and headache, may also occur. Medications such as nifedipine tablets, amlodipine besylate tablets, or ramipril tablets may be prescribed under a doctor’s supervision.

In addition, maintaining a healthy lifestyle, developing good eye-use habits, and ensuring sufficient rest are essential for eye health.