Conjunctivitis also called Pink eye an inflammation of the transparent membrane that lines the eyelid and eyeball. This membrane is called the conjunctiva. When small blood vessels in the conjunctiva become swollen and irritated, they’re more visible. This is what causes the whites of the eyes to appear reddish or pink. Pink eye also is called conjunctivitis.
What causes pink eye?
The pink or reddish color of pink eye happens when the blood vessels in the membrane covering your eye (the conjunctiva) gets inflamed, making them more visible. Causes of inflammation include:
Viruses. Viruses are the most common cause of pink eye. Coronaviruses, such as the common cold or COVID-19, are among the viruses that can cause pink eye.
Allergens. This includes molds, pollen or other substances that cause allergies.
Irritating substances. This includes shampoos, cosmetics, contact lenses, dirt, smoke and pool chlorine.
Sexually transmitted infections (STIs). A virus (herpes simplex) or bacteria (gonorrhea or chlamydia) can cause STIs. STIs can cause pink eye in both adults and newborns.
Autoimmune conditions. Diseases that cause your own immune system to overreact are a rare cause of pink eye.
And finally, Your ophthalmologist or pediatrician will examine your eyes or your child’s eyes. Your provider can usually diagnose pink eye based on symptoms and health history. All this information is according to an article from Cleave land clinics published on 22nd August 2022.