What causes redness at the outer corner of the eye?
Dec 03, 2022
Source: Cainiu Health
Dr. Cui Xin
Introduction
Redness in the outer corner of the eye may be caused by ocular pigmentation, eyelid eczema, keratitis, blepharitis, or allergic conjunctivitis. Prolonged exposure to sunlight or chronic eye inflammation may lead to pigmentation on the cornea or conjunctiva, making the outer corner appear red. It is recommended to avoid excessive sun exposure, wear sunglasses, have regular eye examinations, and seek evaluation at a reputable hospital if needed.
Redness in the outer corner of the eye may be caused by corneal pigmentation, eyelid eczema, keratitis, blepharitis, or allergic conjunctivitis. Specific analyses are as follows:
1. Corneal Pigmentation
Prolonged exposure to sunlight or chronic eye inflammation may lead to pigmentation on the cornea or conjunctiva, causing the outer corner of the eye to appear red. It is recommended to avoid excessive sun exposure, wear sunglasses, have regular eye examinations, and, if necessary, seek treatment at a reputable hospital using laser therapy to improve pigmentation.
2. Eyelid Eczema
Using substandard cosmetics such as eyeshadow or mascara can easily irritate the local eye area, leading to eyelid eczema and redness in the outer corner of the eye. Patients may follow medical advice to apply medications such as tacrolimus ointment or desonide cream for treatment.
3. Keratitis
If the eye suffers trauma or becomes infected with pathogenic microorganisms such as viruses, bacteria, or mycoplasma, damage or loss of corneal epithelial cells may result in keratitis, causing redness in the outer corner of the eye. Under medical guidance, patients may use medications such as diclofenac sodium eye drops or pranoprofen eye drops for treatment.
4. Blepharitis
Blepharitis caused by vitamin B2 deficiency or prolonged use of low-quality cosmetics may lead to redness in the outer corner of the eye. Treatment under medical supervision may include erythromycin eye ointment or fusidic acid gel.
5. Allergic Conjunctivitis
Allergic conjunctivitis is inflammation of the conjunctiva triggered by allergens (such as pollen, pet dander, dust mites, etc.), which may cause eye redness and itching. Management includes avoiding allergens and, under a doctor's guidance, using medications such as levofloxacin hydrochloride eye drops.
It is recommended to use your eyes properly, avoid staying up late, and maintain good eye hygiene. If discomfort occurs, seek medical attention promptly.
