![]() ![]() The American Optometric Association states that chemicals are a possible cause of conjunctivitis because they can irritate the eye. People who have other allergic conditions, such as asthma or hay fever, commonly develop allergic conjunctivitis. Substances that can produce an allergic reaction may also cause conjunctivitis. The condition spreads easily to other people. Bacterial infectionīacterial conjunctivitis is more common in children than in adults and occurs more often between December and April. Viral conjunctivitis is highly contagious and can result in large outbreaks. One of those is adenovirus, which often produces symptoms similar to those of the common cold. Viral infectionĪ variety of viruses may cause conjunctivitis. Someone whose conjunctivitis is due to an allergy may have very itchy eyes, along with other allergy symptoms, such as coughing, sneezing, or a sore throat.Īlthough there are many possible causes of conjunctivitis, the most common are viruses, bacteria, and allergens. For example, the CDC says that pinkeye resulting from a bacterial infection produces a thick discharge from the eye, whereas in viral infections, the discharge is usually watery. crusty eyelids or lashes, especially when waking upĪ person’s symptoms may vary depending on what is causing their conjunctivitis. ![]() the feeling of having something in the eye.swelling of the clear coating of the eye.redness or pinkness in the white of one or both eyes.The Centers for Disease Control and Prevention (CDC) note that the common symptoms of conjunctivitis are: This effect is the reason why many people refer to conjunctivitis as pinkeye. It also causes blood vessels in the conjunctiva to widen, increasing blood flow and making the white of the eye appear red or pink. ![]() The irritation may cause the conjunctiva to swell and become jelly-like. The irritation or infection of this membrane results in a condition called conjunctivitis. The conjunctiva is a clear membrane that covers the inside of the eyelids and the white part of the eye. Share on Pinterest ljubaphoto/Getty Images ![]()
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