Surfing on the Wave(lengths)

Sunday 11 March 13:30 - 14:30

As an organ of sight, the eye has evolved to respond to electromagnetic radiation. The nature of that response can be substantially influenced by the wavelength components of the incident light in a variety of different ways. In particular, light at the blue end of the spectrum has been of concern, partly because of its relatively higher energy content. As the amount and intensity of both blue and ultra-violet light continues to increase in the modern environment, it is important to understand the consequences of exposure in both the short and longer terms. This presentation will discuss how the interaction of various ocular tissues with light varies according to its wavelength, and summarise the experimental evidence surrounding the need for, and effectiveness of, strategies for protection.

Learning objectives:
1. Update on ocular tissues that are potentially affected by blue and UV radiation.
2. Understand the mechanisms of interaction of blue/UV light with ocular tissue.
3. Become familiar with the effectiveness of current options for reducing exposure levels to blue/UV wavelengths.

Hand-outs James Wolffsohn
Hand-outs Eric Papas

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