Ophthalmia (/ɒpˈθælmiə/; also called ophthalmitis, and archaically obtalmy)[1] is inflammation of the eye.
It results in congestion of the eyeball, often eye-watering, redness and swelling, itching and burning, and a general feeling of irritation under the eyelids.
Ophthalmia can have different causes, such as infection from bacteria, viruses, fungi, or may result from a physical trauma to the eye, chemical irritation, and allergies.
A bacterial infection can result in a mucus and pus secretion.
[2] Severe cases of ophthalmia can cause blindness if not treated, especially in newborns, who contract it from the environment in the womb.