Experts say Attention Deficit Hyperactivity Disorder (ADHD) has become a modern menace for millions of children and adults alike. In South Africa, between eight and ten percent of the population are said to be suffering from ADHD. The disorders is characterised by problems with concentration, impulse control and sleep difficulties among others. There has also been an interesting observation that the escalation of ADHD cases in the 1990's and 2000's coincided with the rise of the digital age, and the widespread use of personal technology that now pervades our daily lives. For more on this issue Channel Africa's Samora Mangesi recently spoke to a specialist ophthalmologist, Dr Daniel who has developed innovative tinted spectacles that may assist ADHD suffers with sleep disorders....