This is a Phase 1/2, open-label study designed to evaluate the safety, tolerability and procedure of a microneedle injection of triamcinolone acetonide (TA) into the SCS. The subjects enrolled in this study will be chosen from subjects with non-infectious intermediate, posterior and pan-uveitis. The injection will only be administered to a single eye via the Clearside Biomedical proprietary microneedle into the SCS. The dose of TA to be injected is 4 mg of currently approved TRIESENCE® (triamcinolone acetonide injectable suspension 40 mg/mL). The study design includes 10 clinic visits over 27 weeks. Subjects will be followed for 26 weeks following treatment with TRIESENCE®.