NEURO-OPHTHALMOLOGY: Edited by Dean M. CestariUpdate on giant cell arteritisSammel, Anthony Michaela,b,c; Fraser, Clare Louised,eAuthor Information aRheumatology Department, Royal North Shore Hospital bRheumatology Department, Prince of Wales Hospital cNorthern Clinical School, Sydney Medical School dSave Sight Institute, University of Sydney eMacquarie Ophthalmology, Macquarie University, Sydney, Australia Correspondence to Anthony Michael Sammel, MBBS, FRACP, Department of Rheumatology, Level 7, Acute Services Building, Royal North Shore Hospital, St Leonards, NSW 2065, Australia. Tel: +61 2 94631887; fax: +61 2 94631077; e-mail: [email protected] Current Opinion in Ophthalmology: November 2018 - Volume 29 - Issue 6 - p 520-527 doi: 10.1097/ICU.0000000000000528 Buy Metrics Abstract Purpose of review Giant cell arteritis (GCA) is a challenging condition to manage because of the potential for acute irreversible vision loss and corticosteroid-related morbidity. Recent developments offer the potential to improve both the assessment and treatment of patients. Recent findings Vascular imaging is increasingly being used in the diagnostic algorithm for GCA. Results from recent vascular ultrasound and high-resolution cranial MRI studies have led some groups to suggest forgoing temporal artery biopsy (TAB) in selected patients. The treatment armamentarium has been enhanced with the addition of Tocilizumab, a monoclonal antibody that inhibits IL-6 and has been shown to be effective in sustaining glucocorticoid-free remission out to 52 weeks. New publications have provided guidance in how clinicians can interpret minimally inflamed biopsies and navigate the controversy about what role, if any, varicella zoster virus may play in the pathophysiology of GCA. Basic science developments have improved our understanding of the immunopathology of GCA including the role of Th1 and Th17 lymphocytes and mechanisms of arterial wall lymphocyte invasion. Summary There have been significant recent advances in GCA, particularly in relation to imaging and treatment options. Longer term outcome data will help clarify how best to utilize them in routine clinical practice. Copyright © 2018 Wolters Kluwer Health, Inc. All rights reserved.