RT Journal Article SR Electronic T1 Negative impact of COVID-19 lockdown on papilloedema and idiopathic intracranial hypertension JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 795 OP 797 DO 10.1136/jnnp-2020-325519 VO 92 IS 7 A1 Mark Thaller A1 Georgios Tsermoulas A1 Rosa Sun A1 Susan P Mollan A1 Alexandra J Sinclair YR 2021 UL http://jnnp.bmj.com/content/92/7/795.abstract AB