Red Eye
Red eye is one of the most common eye complaints. Most causes are mild and self-limited, but some require urgent care to protect vision.
Table of Contents
Quick Facts
- ICD-10: H57.8
- Common cause: Viral or bacterial conjunctivitis
- Emergency cause: Acute angle-closure glaucoma
When to Seek Urgent Care
Seek same-day care for red eye with:
- Severe pain
- Sudden vision loss
- Halos around lights, nausea, vomiting
- Recent eye injury or chemical exposure
- Severe light sensitivity
- Contact lens use with red, painful eye
Common Causes
- Conjunctivitis (viral, bacterial, allergic)
- Dry eye
- Subconjunctival hemorrhage (red but painless; usually harmless)
- Stye or chalazion
- Foreign body or corneal abrasion
- Contact lens irritation or infection
- Uveitis (inflammation inside the eye)
- Acute glaucoma
- Blepharitis
Self-Care
- Cool compress for irritation
- Artificial tears
- Remove contacts and avoid wearing until resolved
- Wash hands frequently if infectious cause suspected
When to See a Doctor
See a doctor for any of the urgent symptoms above, redness lasting more than a week, or redness with discharge that doesn't improve.
Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about a medical condition. If you are experiencing a medical emergency, call your local emergency number immediately.
References
- American Academy of Ophthalmology. Red Eye Patient Information.