Fig. 7: Implantation methods of MNs into ocular tissues.
From: Microneedles for controlled and sustained intraocular drug delivery
a Biodegradable MN patch for corneal healing. Reproduced with permission from ref. 51. b MNs for ocular drug delivery. Reproduced with permission from ref. 18. c Contact lens shaped system with silicon nanoneedles for ocular drug delivery. Reproduced with permission from ref. 36. d Detachable MN pen. Reproduced with permission from ref. 42.
