Soft Contact Lenses As Drug Delivery Systems: A Review

Overview

Journal Molecules

Publisher MDPI

Specialty Biology

Date 2021 Sep 28

PMID 34577045

Citations 21

Authors

Iwona Rykowska

Iwona Nowak

Rafal Nowak

Affiliations

Soon will be listed here.

Abstract

This review describes the role of contact lenses as an innovative drug delivery system in treating eye diseases. Current ophthalmic drug delivery systems are inadequate, particularly eye drops, which allow about 95% of the active substance to be lost through tear drainage. According to the literature, many interdisciplinary studies have been carried out on the ability of contact lenses to increase the penetration of topical therapeutic agents. Contact lenses limit drug loss by releasing the medicine into two layers of tears on either side of the contact lens, eventually extending the time of contact with the ocular surface. Thanks to weighted soft contact lenses, a continuous release of the drug over an extended period is possible. This article reviewed the various techniques to deliver medications through contact lenses, examining their advantages and disadvantages. In addition, the potential of drug delivery systems based on contact lenses has been extensively studied.

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