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Trace of sEVs. Distribution of sEVs labeled with PKH-26 in the retina was observed at 24 h and 48 h after subconjunctival injection. 24 h after the injection of sEVs (A) and Rapa-sEVs (B), fluorescence was detected in the retina. A mild reduction in red fluorescence was observed 48 h after the injection of sEVs (C) and Rapa-sEVs (D).
