In an accompanying commentary, Dr Gordon Johnson of University College London, UK, says that "ophthalmic surgeons should not be pressured to go for quantity at the expense of quality".

BBC: India cataract policy 'needs review'

Imperial College London fell from fifth to sixth place, while University College London, the last in the UK to make the top 10, rose from ninth to seventh place.

BBC: US and UK universities 'dominant'

Scientists at the Cancer Research UK London Research Institute and the University College London Cancer Institute have been trying to crack how cancers become so diverse in the first place.

BBC: Thriving cancer's 'chaos' explained

Apparently in a study done by the Deafness Research UK in conjunction with Dr. Brad Backus of University College London, 14 out of 15 toys tested produced noise levels above the recommended safety limit when held close to the ear. 8 of the 15 were just fine during normal use, but the three worst offenders -- a machine gun, a tommy gun and a cap gun -- are on the "avoid" list.

ENGADGET: Christmas toy noises are/aren't dangerous

Although built mainly in Germany and France, CryoSat-2 is led scientifically from the UK by its proposer and principal investigator, Professor Duncan Wingham from University College London.

BBC: Launch success for Esa's Cryosat-2 ice mission

Statistics expert Professor Patrick Wolfe, from University College London, said the absolute risk of Type-2 diabetes is low at about 4% of the adult UK population.

BBC: Diabetes warning over soft drinks