There are three different types of conjunctivitis: viral, bacterial and allergic.

The treatment generally depends upon the cause but in general, conjunctivitis usually gets better without treatment.

In the vast majority of cases it's a mild condition which poses no threat to the eye or vision.

However, contact lenses should not be worn until the symptoms have completely gone.

If the symptoms are marked or persistent, it's best to seek help from a qualified optician or GP.