Diagnostic and Therapeutic Challenges

1Department of Uveitis, Moorfields Eye Hospital, National Health Service Foundation Trust, London, United Kingdom 2Rheumatology Department, Great Ormond Street Hospital for Children, London, United Kingdom 3Department of Oncology, Moorfields Eye Hospital, National Health Service Foundation Trust, London, United Kingdom 4Department of Vitreoretinal Surgery, Moorfields Eye Hospital, National Health Service Foundation Trust, London, United Kingdom Corresponding Author: Ilaria Testi Moorfields Eye Hospital 162 City Rd, Old Street, London EC1V 2PD [email protected] Competing interests The authors have no relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. This includes employment, consultancies, honoraria, stock ownership or options, expert testimony, grants or patents received or pending, or royalties. Funding This work was supported by the National Institute for Health Research (NIHR) Biomedical Research Centre based at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology. The views expressed are those of the authors and not necessarily those of the NHS, the NIHR or the Department of Health.