 Therefore, when Mann applied for, and was appointed to, the post of Margaret Ogilvy Reader in Ophthalmology at the University of Oxford in 1941, she was obliged to combine this research and teaching post with her work at Moorfields in London, her work on the Chemical Defence Research team and her work as a private consultant in London and Oxford.During her tenure at Oxford, among other achievements, she oversaw the building of the Nuffield Laboratory of Ophthalmology, restarted the diploma courses for post-graduates, inaugurated the Orthoptic School and re-instituted the Oxford Ophthalmological Congress.In her own words, she had 'cleared the Augean stable' in nine months.