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. 2019 Nov 8;39(3):362–369. doi: 10.1097/ICO.0000000000002182

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Copyright © 2019 The Author(s). Published by Wolters Kluwer Health, Inc.

This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal.

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FIGURE 2. — Depth of corneal stromal injection using different lengths of the injection device. A, HFU images in a noninjected eye and after injection of 10 μL of 0.01% fluorescein solution using a 330-, 460-, or 600-μM length needle. B, Depth to the center of the injection location was significantly different when using a short, medium, or long needle. N = 3 per injection. A, Depth of injection using a medium needle was significantly greater than that of a short needle (P = 0.02). B, Depth of injection with a long needle was significantly greater than that using a medium or short needle (P < 0.004).