Journal
JOURNAL OF PHARMACY AND PHARMACOLOGY
Volume 67, Issue 4, Pages 537-550Publisher
WILEY
DOI: 10.1111/jphp.12355
Keywords
antioxidants; aspirin; bendazac and naltrexone; carnosine; carotenoids; cataract; crystallins; flavonoids; ocular delivery
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Funding
- Leverhulme Trust
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ObjectivesThe search for anticataract drugs has been continuing for decades; some treatments no longer exist but antioxidants are still of much interest. Key findingsThe 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. SummaryThis 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.
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