Ryan O'Hare

The NHS Atlas of Variation shows performance differences across England, including access to diabetic health screening and cataract operations

The number of sight tests carried out in England fell by almost 23,000 in 2014–15, compared with the previous year

Online tool ranks which professions are likely to become fully automated in the future, showing optometry to be safe, but dispensing optics may not be so secure

Dementia could be detected early on through observing changes to the retina, say researchers