If both of your eyes suddenly turn red, it may be a sign of an eye condition or an external factor. The redness in both eyes is typically due to the expansion of blood vessels on the surface of the eye. Here are some common reasons why both eyes may become red:
- Conjunctivitis (Pink Eye): Pink eye is one of the most common causes of redness in both eyes. It can be caused by viral or bacterial infections, allergies, or irritants. Symptoms may include redness, itching, discharge, and tearing.
- Allergies: Allergic reactions to pollen, dust, pet dander, or other allergens can cause redness, itching, and swelling in both eyes.
- Dry Eye: Insufficient tear production or poor tear quality can lead to dry eyes, causing redness, irritation, and a gritty feeling.
- Environmental Irritants: Exposure to smoke, dust, pollution, or harsh chemicals can irritate the eyes and cause redness.
- Contact Lenses: Wearing contact lenses for an extended period or improper lens care can lead to redness and discomfort.
- Eye Fatigue: Extended periods of screen time or other visually demanding tasks can strain the eyes and result in redness.
- Infections: Systemic infections or other illnesses can sometimes manifest as red eyes.
- Inflammation: Conditions like uveitis or scleritis can cause inflammation and redness in both eyes.
- Chemical Exposure: Accidental exposure to irritants or chemicals can lead to redness and discomfort.
If both of your eyes turn red and the redness is persistent, accompanied by pain, vision changes, discharge, or if you are concerned about your eye health, it’s essential to seek prompt evaluation and treatment from an eye care professional. They can diagnose the underlying cause and recommend appropriate treatment, which may include eye drops, medication, or other interventions to address the specific issue.