Suprachoroidal space alterations following delivery of triamcinolone acetonide: Post-hoc analysis of the phase 1/2 HULK study of patients with diabetic macular edema

BACKGROUND AND OBJECTIVE: To study anatomic changes in the suprachoroidal space (SCS) following suprachoroidal injection of CLS-TA, triamcinolone acetonide injectable suspension. PATIENTS AND METHODS: Eyes with diabetic macular edema receiving CLS-TA were imaged serially using anterior segment spectral-domain optical coherence tomography to examine the SCS. RESULTS: At the final imaging session, the SCS was not significantly different in study eyes (n = 14; 8.4 μm) compared to fellow eyes (n = 10; 8.1 μm; P = .698). Two eyes were imaged immediately before and 30 minutes after suprachoroidal injections; in these eyes, mean suprachoroidal width increased significantly following CLS-TA injection, 9.9 μm to 75.1 μm (P < .001), and subsequently returned to 14.9 μm 1 month after the final injection (P = .221). CONCLUSION: Suprachoroidal CLS-TA injection caused a measurable increase in the SCS, which returned to preinjection levels by 1 month following injection with no apparent lasting impact on SCS anatomy. [Ophthalmic Surg Lasers Imaging Retina. 2018;49:692-697.].