This will be a 45-minute lecture followed by 15 mins of questions, which will cover the optical bio-physics behind how high energy visible (HEV) light causes photochemical damage to the retina. Topics covered will include: • What is HEV light and why is it dangerous? • Optics of the eye and penetration of HEV light to the retina. • How HEV damages and kills retinal cells. • Type I and Type II retinal damage. • Accumulation of damage to DNA, the probability problem. • Ageing and its impact on retinal cell repair mechanisms. • Link between photochemical damage and Age-related Macular Degeneration (AMD) • The eye’s natural protection, ocular media and macular pigments. • How macular pigments can be assessed in the living eye. • What can patients do to reduce their risks of developing AMD • How can helping your patients help your practice Learning Objectives
• Information enabling them to communicate to their patients the dangers associated with HEV light and how their patients can take actions and make lifestyle choices to reduce their risk of long-term retinal damage from HEV light.
• Awareness of new technologies available for rapid assessment of macular pigment density (assessment of visual function and optical appliances), which is the retina’s natural protection against photo-chemical damage.
• Understanding of some of the possible mechanisms and risk factors underlying AMD and deterioration of the retina with age (ocular disease) and exposure to HEV.
Dr Shelby Temple, Honorary Researcher and Director, University of Bristol/Azul Optics