Signs of age

日期:2017-12-09 03:03:52 作者:胡蓦 阅读:

The University of Bradford’s optometry department has built a device called an aberroscope to find out how ageing affects the lens of the eye. The aberroscope projects a grid of six horizontal and vertical lines which are reflected off the retina and back out through the lens. Lens aberrations show up as distortions of the lines.