Sub-Tenon injection is an ocular route of drug administration. It involves administration of a medication to the area between the sclera and the Tenon's capsule. [1]
Posterior sub-Tenons steroid injections (PSTSI) is used in the treatment of posterior ocular inflammation, such as chronic uveitis. [2] This route is also reported to be used to administer triamcinolone acetonide (a corticosteroid) in the treatment of macular telangiectasia type 1.
Also, it is used in the ocular anesthesia. [3]