Related articles: Reddened eyes
Definition
The redness of the eyes reflects a dilation of the superficial ocular vessels. This symptom may occur during infection, inflammation, allergy, trauma or high pressure at the eye level.
The most frequent causes of redness of the eyes include conjunctivitis (allergic or infectious), corneal abrasions or foreign bodies. Reddened eyes can also derive from prolonged use of contact lenses and exposure to potentially irritating substances (eg dust, fumes, ammonia and chlorine).
If the symptom is associated with persistent pain, acute angle-closure uveitis, scleritis or glaucoma may be present. The appearance of a blood-colored spot, on the other hand, can be caused by sub-conjunctival hemorrhage.
The image shows significant redness of the ocular sclera
Possible Causes * of red eyes
- Contact allergy
- Respiratory allergies
- Juvenile Idiopathic Arthritis
- Blepharitis
- chalazion
- Headache
- Herpes simplex keratitis
- Keratoconus
- Conjunctivitis
- dacryocystitis
- Dengue
- Ebola
- episcleritis
- Marburg hemorrhagic fever
- Yellow fever
- Glaucoma
- Herpes zoster ophthalmic
- West Nile virus infection
- Iridocyclitis
- Leptospirosis
- Cat scratch disease
- Kawasaki disease
- Molluscum contagiosum
- Pertussis
- pinguecula
- Polycythemia vera
- Porphyria
- Porfiria Cutanea Tarda
- Presbyopia
- Retinoblastoma
- Allergic rhinitis
- Rosacea
- sCLERITIS
- Sixth disease
- Dry eye syndrome
- Ankylosing spondylitis
- Trachoma
- trichinosis
- Corneal ulcer
- Uveitis
- Zika virus
