Diseases of the central nervous system (CNS) may manifest as pathological changes in the retina of the eye. Research now shows that retinal changes may be detected earlier than brain changes. Findings from mouse models suggest that eye examination could be used as a noninvasive screening tool for human brain diseases.
Facebook has launched a slimmed-down version of its popular Messenger app in an effort to appeal to its users in countries with slower internet access. The app is called Messenger Lite, and it is also aimed at users who have basic Android smartphones. From a CNET article: Facebook Messenger Lite takes up a much smaller amount of a phone's storage --just 10 megabytes -- than the full-fat app that most users have installed on their phones, and it has been pared back so that it runs nippily over slower than average network speeds. It is the companion app to Facebook Lite, a stripped-down version of the social network, also for old Android phones, launched in 2015. The app's launch is one cog in the wheel of Facebook's strategy to make the social network and the internet as a whole more accessible to users in the developing world. One of Facebook's stated aims is to bring the next 3 billion people online and it has a number of initiatives to that end, including internet.org, Free Basics and its Lite apps.