RT Journal Article SR Electronic T1 Sudden visual loss following abdominal surgery JF BMJ Case Reports JO BMJ Case Reports FD BMJ Publishing Group Ltd SP e227266 DO 10.1136/bcr-2018-227266 VO 12 IS 3 A1 Gladys Reshma Rodrigues A1 Nooji Sathyanarayan A1 Teena Mendonca A1 Tina Anne John YR 2019 UL http://casereports.bmj.com/content/12/3/e227266.abstract