Dynamic contact angle analysis of silicone hydrogel contact lenses using the Wilhelmy plate technique

Campbell, Darren; Eden, Russell; Carnell, Sarah; Tighe, Brian

doi:10.1016/j.clae.2013.08.093

Cited by 3 publications

(1 citation statement)

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“…6). In order to use this technique in studying hydrogel materials, some studies have attached a small weight to the hydrogel [144] or mounted the sample on the force sensor [145,146] before testing to increase dimensional stability of intact hydrogel lens upon immersion into a fluid.…”

Section: Wettabilitymentioning

confidence: 99%

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

Nguyen

Dowling²,

Ryan

et al. 2021

Contact Lens and Anterior Eye

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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.

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Section: Wettabilitymentioning

confidence: 99%