British Journal of Ophthalmology (BJO) is a Plan S compliant Transformative Journal. British Journal of Ophthalmology (BJO) is an international peer-reviewed journal for ophthalmologists and visual science specialists. BJO publishes clinical investigations, clinical observations, and clinically relevant laboratory investigations related to ophthalmology. It also provides major reviews and also publishes manuscripts covering regional issues in a global context. BJO has an open access companion journal BMJ Open Ophthalmology.