Age-related cataract and drug therapy: opportunities and challenges for topical antioxidant delivery to the lens

Abdelkader, Hamdy and Alany, Raid G. and Pierscionek, Barbara K. (2015) Age-related cataract and drug therapy: opportunities and challenges for topical antioxidant delivery to the lens. Journal of Pharmacy and Pharmacology, 67 (4). pp. 537-550. ISSN 2042-7158

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Official URL: https://doi.org/10.1111/jphp.12355

Abstract

Objectives: The search for anticataract drugs has been continuing for decades; some treatments no longer exist but antioxidants are still of much interest. Key findings: The primary function of the human lens, along with the cornea, is to refract light so that it is correctly focused onto the retina for optimum image quality. With age, the human lens undergoes morphological, biochemical and physical changes leading to opacification. Age-related or senile cataract is one of the main causes of visual impairment in the elderly; given the lack of access to surgical treatment in many parts of the world, cataract remains a major cause of sight loss. Surgical treatment is the only means of treating cataract; this approach, however, has limitations and complications. Summary: This review discusses the anatomy and physiology of the lens and the changes that are understood to occur with ageing and cataract formation to identify potential areas for effective therapeutic intervention. Experimental techniques and agents used to induce cataract in animal models, the advantages and disadvantages of potential pharmacological treatments specific barriers to delivery of exogenous antioxidants to the lens and the prospects for future research are discussed.

Item Type: Journal Article
Keywords: antioxidants, aspirin, bendazac and naltrexone, carnosine, carotenoids, cataract, crystallins, flavonoids, ocular delivery
Faculty: ARCHIVED Faculty of Health, Social Care & Education (until September 2018)
Depositing User: Lisa Blanshard
Date Deposited: 22 Feb 2021 10:50
Last Modified: 09 Sep 2021 16:15
URI: https://arro.anglia.ac.uk/id/eprint/706342

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