Sussex-based angel investment group South East Angels has announced its recent investment in Siloton - a startup on a mission to leverage the latest advancements in integrated photonics to improve the global population’s health.  Looking to serve the 25% of over 60’s with age-related macular degeneration, Siloton has developed an at-home diagnostic imaging device that reduces the burden of treatment, alleviating pressure on healthcare systems, while helping patients retain their sight for longer.