A Phase I/IIa Study for the Treatment of Uveitis With Iontophoresis

Inclusion Criteria: * Clinical history of, none-infectious anterior, intermediate, posterior or panuveitis, with or without associate systemic disease, like: Vogt Koyanagi Harada, Wegener Granulomatosis, Systemic erythematous Lupus, Behçet disease, etc. * Requirement or with current topical treatment with steroids (more than every 6 hours), needs acute or chronic treatment with oral, intravenous, periocular or intravitreous corticosteroids or immunosuppressive agents for the control of the disease. * Best Corrected Visual Acuity in the worse eye of 20/40 to 20/800 in ETDRS record. * Patients with good mydriasis and no significant ocular opacities. * Patients who do not plan elective surgery. Exclusion Criteria: * Infectious, pos-traumatic, Fuchs or self-limited uveitis. Patients with Diagnosis of glaucoma or ocular hypertension (greater than 25mmHg). * Diagnosis or suspects ocular or central nervous system lymphoma. Patients with only one eye. * Associated optical Neuritis of any etiology. * Severe injuries in the eyelids or in the ocular surface that prevent the application of the electrode. * Well-known allergy to the Dexamethasone. * Toxoplasma scar or vitreous hemorrhage. * Corneal injuries of herpetic origin or with suspicion of being herpetic. * Patients with poor mydriasis, significant ocular opacities that prevents the evaluation of the posterior pole or the follow-up studies.