Pharmaceutical-loaded contact lenses as an ocular drug delivery system : A review of critical lens characterization methodologies with reference to ISO standards

Nguyen, Dan Chau Thuy and Dowling, Joseph and Ryan, Richie and McLoughlin, Peter and Fitzhenry, Laurence (2021) Pharmaceutical-loaded contact lenses as an ocular drug delivery system : A review of critical lens characterization methodologies with reference to ISO standards. Contact Lens and Anterior Eye, 44 (6). ISSN 1367-0484

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Abstract

Therapeutic contact lenses for ocular drug delivery have received considerable interest as they can potentially enhance ocular bioavailability, increase patient compliance, and reduce side effects. Along with the successful in vitro and in vivo studies on sustained drug delivery through contact lenses, lens critical properties such as water content, optical transparency and modulus have also been investigated. Aside from issues such as drug stability or burst release, the potential for the commercialization of pharmaceutical-loaded lenses can be limited by the alteration of lens physical and chemical properties upon the incorporation of therapeutic or non-therapeutic components. This review outlines advances in the use of pharmaceutical-loaded contact lenses and their relevant characterization methodologies as a potential ocular drug delivery system from 2010 to 2020, while summarizing current gaps and challenges in this field. A key reference point for this review is the relevant ISO standards on contact lenses, relating to the associated characterization methodologies. The content of this review is categorized based on the chemical, physical and mechanical properties of the loaded lens with the shortcomings of such analytical technologies examined.

Item Type:	Article
Additional Information:	Funding Information: This work was supported by the Irish Research Council-Enterprise Partnership Scheme [grant number: EPSPG/2017/236, 2017]. Publisher Copyright: © 2021 The Author(s)
Uncontrolled Keywords:	/dk/atira/pure/subjectarea/asjc/2700/2731
Departments or Groups:
Depositing User:	Admin SSL
Date Deposited:	19 Oct 2022 23:06
Last Modified:	15 Aug 2023 16:05
URI:	http://repository-testing.wit.ie/id/eprint/4121

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