Why do eyes get red? Why do eyes get red?

Although in many cases they are not a medical emergency, they can sometimes be a cause for concern. Learn to identify the signs.

Swollen and dilated blood vessels is in essence what causes redness of the eyes. This condition, which is usually less of a concern than eye pain or other vision impairing conditions, can be caused by multiple factors such as dry eyes, too much sun exposure, dust or other particles entering the eye, allergies, infections, or injuries.

According to the U.S. National Library of Medicine’s website MedlinePlus, there are four major diseases that are characterized by redness in the eyes:

  • Blepharitis: inflammation at the edge of the eyelid.
  • Conjunctivitis: an infection of the tissue covering the surface of the eye.
  • Corneal Ulcers: injury to the cornea caused by a serious bacterial infection.
  • Uveitis: inflammation of the uvea (intermediate layer between the retina and the white of the eye). It can be related to infection or exposure to toxins.

How to combat red eyes

According to the Baviera Clinic, there are drops on the market that are often used without a doctor’s prescription to reduce redness in the eyes. Nevertheless, these products are usually vasoconstrictors that can generate temporary relief but do not resolve the cause.

“These products should not be used too often, it is preferable to use eye drops that solve the problem and that are prescribed by an ophthalmologist and, in any case, use artificial tears to lubricate the eye if the problem is associated with dry eyes,” the center explains.

To prevent red eyes, the Clinic recommends avoiding places with smoke or pollution, wearing sunglasses with UV protection outdoors, and resting your eyes enough after being in front of a screen for long periods of time.

Continue reading: Ten tips for connecting and taking care of your eyes