Contact Lenses as Ophthalmic Drug Delivery Systems: A Review

Ophthalmic drugs used for the treatment of various ocular diseases are commonly administered by eye drops. However, due to anatomical and physiological factors, there is a low bioavailability of the active principle. In order to increase the drug residence time on the cornea to adequate levels, ther...

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Main Authors: Paola Franco, Iolanda De Marco
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/13/7/1102
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author Paola Franco
Iolanda De Marco
author_facet Paola Franco
Iolanda De Marco
author_sort Paola Franco
collection DOAJ
description Ophthalmic drugs used for the treatment of various ocular diseases are commonly administered by eye drops. However, due to anatomical and physiological factors, there is a low bioavailability of the active principle. In order to increase the drug residence time on the cornea to adequate levels, therapeutic contact lenses have recently been proposed. The polymeric support that constitutes the contact lens is loaded with the drug; in this way, there is a direct and effective pharmacological action on the target organ, promoting a prolonged release of the active principle. The incorporation of ophthalmic drugs into contact lenses can be performed by different techniques; nowadays, the soaking method is mainly employed. To improve the therapeutic performance of drug-loaded contact lenses, innovative methods have recently been proposed, including the impregnation with supercritical carbon dioxide. This updated review of therapeutic contact lenses production and application provides useful information on the most effective preparation methodologies, recent achievements and future perspectives.
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spelling doaj.art-b30c6fa4e30b4eaca041e1d97ae384d22023-11-21T13:27:01ZengMDPI AGPolymers2073-43602021-03-01137110210.3390/polym13071102Contact Lenses as Ophthalmic Drug Delivery Systems: A ReviewPaola Franco0Iolanda De Marco1Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano (SA), ItalyDepartment of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano (SA), ItalyOphthalmic drugs used for the treatment of various ocular diseases are commonly administered by eye drops. However, due to anatomical and physiological factors, there is a low bioavailability of the active principle. In order to increase the drug residence time on the cornea to adequate levels, therapeutic contact lenses have recently been proposed. The polymeric support that constitutes the contact lens is loaded with the drug; in this way, there is a direct and effective pharmacological action on the target organ, promoting a prolonged release of the active principle. The incorporation of ophthalmic drugs into contact lenses can be performed by different techniques; nowadays, the soaking method is mainly employed. To improve the therapeutic performance of drug-loaded contact lenses, innovative methods have recently been proposed, including the impregnation with supercritical carbon dioxide. This updated review of therapeutic contact lenses production and application provides useful information on the most effective preparation methodologies, recent achievements and future perspectives.https://www.mdpi.com/2073-4360/13/7/1102contact lensesophthalmic drugpolymeric supportocular drug delivery
spellingShingle Paola Franco
Iolanda De Marco
Contact Lenses as Ophthalmic Drug Delivery Systems: A Review
Polymers
contact lenses
ophthalmic drug
polymeric support
ocular drug delivery
title Contact Lenses as Ophthalmic Drug Delivery Systems: A Review
title_full Contact Lenses as Ophthalmic Drug Delivery Systems: A Review
title_fullStr Contact Lenses as Ophthalmic Drug Delivery Systems: A Review
title_full_unstemmed Contact Lenses as Ophthalmic Drug Delivery Systems: A Review
title_short Contact Lenses as Ophthalmic Drug Delivery Systems: A Review
title_sort contact lenses as ophthalmic drug delivery systems a review
topic contact lenses
ophthalmic drug
polymeric support
ocular drug delivery
url https://www.mdpi.com/2073-4360/13/7/1102
work_keys_str_mv AT paolafranco contactlensesasophthalmicdrugdeliverysystemsareview
AT iolandademarco contactlensesasophthalmicdrugdeliverysystemsareview