With the help of a computer, a smartphone and a pair of glasses, a photographer is able to make a virtual 3D image of the glass.
It’s an image that shows what the viewer would see if they had the same vision.
It is used by the UK government and some companies to help them better understand how people perceive their environment and its properties.
But it is also a source of controversy.
The Glass Society, a group of people who support and use Glass, says it is dangerous and has been linked to a range of health issues, from dementia to blindness.
“The glass is not a substitute for seeing what the eye sees,” said John Fennell, a Glass Society spokesman.
“It’s a device that you wear.
It doesn’t make you blind.”
‘Very dangerous’ A new report by the Glass Society says that Glass can be dangerous and can be harmful to your health.
It says it can be linked to: serious eye problems – people who wear glasses often fall and hurt themselves