Dr. Ajay Mohan (AIIMS)MBBS

December 23, 2018

March 06, 2020


What is Conjunctivitis?

Conjunctivitis is the inflammation of the conjunctiva, which is a thin membrane that lines the white part of the eyes and inside of the eyelids. Conjunctivitis is a condition that is commonly seen in children and spreads to others, if infectious.

What are its main signs and symptoms?

Symptoms seen in conjunctivitis are:

  • Pinkish or reddish discolouration in the white part of the affected eye.
  • Increased tearing.
  • Burning and itching in the eyes. 
  • Excessive discharge of the mucus.
  • Swelling of the eyelids and conjunctiva.
  • Irritation in the eyes.
  • A sensation of a foreign body in the eye.
  • Disturbances in vision.
  • Sensitivity to light.
  • Sticky substance on the eyelashes in the morning on waking up.

What are the main causes?

The most common causes of conjunctivitis are infections, allergy and irritants in the environment.

  • Infection is commonly caused by bacteria, such as staphylococcus, chlamydia and gonococcus, and viruses. The infection is spread by insects, physical contact with infected people and contaminated eye cosmetics.
  • Allergy commonly occurs due to exposure to pollen, dust mites, animal hair/feathers, use of hard or soft contact lenses for a long time without replacing.
  • Common environmental irritants are pollution (smoke, fumes, etc.), chlorine in pools and toxic chemicals.

How is it diagnosed and treated?

Based on the history, signs and symptoms, and examination of the eye, your doctor (ophthalmologist) will be able to diagnose conjunctivitis. An eye examination includes checking if the vision has been affected and evaluating the conjunctiva, external eye tissue and inner structures of the eye. Usually, this eye condition lasts for less than four weeks. In the case of prolonged infection or poor response to treatment, a swab (where a sample of mucus/discharge is collected) is taken and sent for examination.

Treatment of conjunctivitis depends upon the cause. Antibiotic drops are given for bacterial infections, but not for viral infections. Viral infections usually run their course. Cool compresses and artificial tears are used for symptomatic relief. For allergic conjunctivitis, antihistamines and eye drops are given. Use of contact lenses during conjunctivitis should be avoided.

You can protect other members of your family from getting infected by:

  • Not touching your affected eye/s.
  • Proper washing of hands.
  • Avoiding sharing of towels and cosmetics.


  1. Prashant V Solanke, Preeti Pawde, Valli P. Prevalence of Conjunctivitis among the Population of Kanyakumari District. Volume 4, Issue 7; July 2017. ISSN: 2393-915X.
  2. Indian journal of medical microbiology. Infections of the ocular adnexa, ocular surface, and orbit. Indian Association of Medical Microbiologist. [internet].
  3. American Optometric Association. Conjunctivitis. St. Louis, Missouri. [internet].
  4. Centre for Health Informatics. [Internet]. National Institute of Health and Family Welfare About Conjunctivitis (Pink Eye)
  5. National Health Portal. Seasonal Allergic Conjunctivitis. Centre for Health Informatics; National Institute of Health and Family Welfare

Medicines for Conjunctivitis

Medicines listed below are available for Conjunctivitis. Please note that you should not take any medicines without doctor consultation. Taking any medicine without doctor's consultation can cause serious problems.

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