It is the inflammation of the middle layer of the eye, located between the sclera on the outside and the retina on the inside, which affects the iris, ciliary body, pars plana and / or the choroid, it can also affect the retina.

Treatment: This will be done with topical corticosteroids, 1% prednisolone acetate, which has the greatest anti-inflammatory power and compared to dexamethasone, less capacity to induce ocular hypertension. The starting dose in general will be every 1 hour since they tend to be very aggressive inflammations. Cycloplegia is also indicated, the objective will be to paralyze the ciliary muscle to avoid the discomfort associated with inflammation and to dilate the pupil to avoid posterior synechiae. In rare circumstances, treatment with subconjunctival or depot corticosteroids in the subtenoneal space will be indicated.  20% of cases are associated with vitreítis, cystoid macular edema or papillitis. In them, treatment with subtenoneana triamcinolone 40 mg / ml is the treatment of choice, with a rapid and excellent response. Systemic treatment is usually not necessary in this type of anterior uveitis. Systemic nonsteroidal anti-inflammatory drugs could have some indication in the prevention of episodes, when they occur very frequently or at well-defined times of the year, although the most effective prevention has been with sulfasalazine, in patients who also had inflammatory bowel disease.