These are recurrent uveitis or inflammation of the uvea (internal vascular structure of the eye). The origins are very varied: viral or bacterial infections; Parasitism; Trauma but also a number of unknown causes (irritant, allergic?).
The symptoms are, first, eye pain, tearing, closing the eyelids, sometimes swelling of the eyelids and then a bluish appearance of the cornea. A myosis (closure of the pupil) and a change in texture and color of the iris are observed.
The consequences can be many and severe: blindness, cataract, glaucoma, detachment of the retina ...
The treatment associates corticosteroids or non-steroidal anti-inflammatory drugs (aspirin ...) as well as a pupil dilator (atropine) to a more specific treatment (antibiotic, antiparasitic ...). The treatment should be very fast and last at least a month.