Tag Archives: vision

The original version of this story appeared in Quanta Magazine. Science routinely puts forward theories, then batters them with data till only one is left standing. In the fledgling science of consciousness, a dominant theory has yet to emerge. More than 20 are still taken seriously. It’s not for want …

Vision loss is common and is highly likely to impact you or someone close to you in your lifetime. The World Health Organization estimates that 2.2 billion people worldwide have a near- or distant-vision impairment. Around 12 million Americans aged 40 years and up have some vision loss today, according …