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. Author manuscript; available in PMC: 2022 May 1.
Published in final edited form as: Prog Retin Eye Res. 2020 Sep 4;82:100901. doi: 10.1016/j.preteyeres.2020.100901

Figure 2.

Figure 2.

Typical reservoir and matrix delivery systems for sustained drug delivery that can potentially release the drug at a zero-order or non-zero order rates (for instance only a few contact lens delivery systems can achieve zero-order release).