WARNING: the interactive features of this website use CSS3, which your browser does not support. To use the full features of this website, please update your browser.
3,163 items of data are available, covering 3,163 participants, encoded using Data-Coding 54. Defined-instances run from 0 to 0, labelled using Instancing 2.
Against participant wishes456
Lack of time1709
Unwilling to remove contact lenses214
Reason not known187
Other health reason39
Unable to understand instructions7
Other eye-related reason267
Reason optical coherence tomography measurement (right eye) was not performed (entered as free-text by a UK Biobank Staff member).
This field was created by post-hoc coding the free-text reasons entered during the assessment centre visit. The encoding used was constructed after the data had been examined to determine suitable representative groupings.