Symptoms
Red eye
Definition
Causes
When to see a doctor
Causes
- Allergies
- Blepharitis (eyelid inflammation)
- Chalazion (a type of cyst on your eyelid)
- Complication from a recent eye surgery
- Contact lens complication
- Corneal abrasion (scratch): First aid
- Corneal herpetic infections (herpes)
- Corneal ulcer
- Dry eyes (decreased production of tears)
- Ectropion (outwardly turned eyelid)
- Entropion (inwardly turned eyelid)
- Episcleritis (inflammation of the membrane covering the white part of the eye)
- Eyedrops side effect or complication
- Foreign object in the eye: First aid
- Glaucoma (group of conditions that damage the optic nerve)
- Hay fever (allergic rhinitis)
- Injury, such as from a blunt trauma or burn
- Iritis (inflammation of the colored part of the eye)
- Keratitis (inflammation of the cornea)
- Orbital cellulitis (severe infection of tissues around the eye)
- Pink eye (conjunctivitis)
- Scleritis (inflammation of the white part of the eye)
- Sty (a red, painful lump near the edge of your eyelid)
- Subconjunctival hemorrhage (broken blood vessel in eye)
- Uveitis (inflammation of the middle layer of the eye)