Cannulation of the Suprachoroidal Space: A Novel Drug Delivery Methodology to the Posterior Segment

Accessing the suprachoroidal space by the microcannulation system can be performed in a safe and reproducible manner by using careful surgical technique. Forceful PDS tip impact into connective tissues in the macular and optic nerve regions should be avoided. Triamcinolone pharmacokinetics are unique and suggest long-term local tissue levels with low systemic levels. PDS access to the suprachoroidal space represents a novel drug delivery method, applicable to a wide variety of pharmacotherapies to the macula, optic nerve, and posterior pole.