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Raid Alany

Raid Alany

Kingston University, UK

Title: Age-related sight loss: novel drug delivery strategies to the anterior and posterior segments of the eye

Biography

Biography: Raid Alany

Abstract

Aging is associated with drastic optical and biochemical changes in the eye often leading to a decline in visual acuity where vision worsens. Such eye disorders impose a financial burden on the health sector worldwide. Recent estimates of the global cost of sight loss -up to the year 2010- suggest an annual figure of over US$3 trillion (£2.4 trillion).  The main disorders leading to sight loss are cataract, glaucoma, age-related macular degeneration (AMD) and diabetic retinopathy. Pharmaceutical formulation and drug delivery research has introduced promising eye treatments into the market; nevertheless, there remain unmet clinical needs and limitations associated with performance of conventional eye drops and ointments. Compromised adherence and/or persistence with conventional eye drops that are applied topically to the surface of the eye is primarily related to the need to be applied once, twice (or even up to four times) daily, often as a combination of multiple drugs, to achieve their intended purpose. The intravitreal injection of anti-vascular endothelial growth factor (VEGF) for AMD treatment requires clinical intervention every 4-8 weeks. Therefore, achieving therapeutics drug concentrations at the target site and maintaining such concentration over extended time intervals with minimal undesirable effects, offer renewed opportunities for product research and development, especially when using already approved drugs with well-established safety and efficacy profiles. This talk will review and provide insights withdrawn from our own research on ophthalmic drug delivery systems that are aimed at age-related eye disorders including phase-transition microemulsions, in-situ gels, polymeric and inorganic nanoparticles, personalised ocular inserts and modified contact lenses.