Conjunctivitis Contagious, not more than cold
Conjunctivitis is an inflammation or infection of the transparent membrane (conjunctiva) that covers the white part of the eyeball and inner side of the eyelids. When small blood vessels in the conjunctiva become inflamed, they are more visible. This is what causes the whites of your eyes to appear reddish or pink.
Conjunctivitis causes redness, itchiness, tearing in one or both eyes. A discharge may be present that forms a crust at night and make it difficult to open the eye in the morning.
Viruses, bacteria, allergies and exposure to chemicals may cause conjunctivitis. Most cases of conjunctivitis are typically caused by adenovirus (in Bangla, "chokh utha"), but it can also be caused by other viruses, including the virus that causes Covid-19.
Conjunctivitis is very contagious. It is spread through direct or indirect contact with the liquid that drains from the eye of the infected person.
Sometimes conjunctivitis may lead to severe complication, like involving the cornea, leading to decreased vision. In that situation, prompt evaluation and treatment are needed. Moreover, it may be an initial symptom of Covid-19 infection. So, if it persists for more than two to three days and the symptoms deteriorate, doctor's consultation is necessary.
As conjunctivitis is contagious, the infected person should follow some measures to prevent it from spreading: don't touch the eyes with your hands, wash your hands often, use a clean towel and washcloth daily, don't share towels or washcloths, change your pillowcases often, don't share eye cosmetics or personal eye care items.
There are some serious eye conditions that can cause eye redness too. These conditions may cause pain, blurred vision and light sensitivity. If your red eye symptoms do not start to improve in two to three days, it is advisable to see a doctor. Remember, all red eyes are not conjunctivitis.
Keep in mind that conjunctivitis is no more contagious than the common cold. But to prevent its spread, stay consistent in practicing good hygiene and go to an eye specialist when symptoms worsen.
Prof Dr Md Shafi Khan is a cornea specialist and phaco surgeon at Bangladesh Eye Hospital.
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