RT Journal Article SR Electronic T1 Using ORA to measure refractive status of air-filled eye JF BMJ Case Reports JO BMJ Case Reports FD BMJ Publishing Group Ltd SP e240926 DO 10.1136/bcr-2020-240926 VO 13 IS 12 A1 Khokhar, Sudarshan A1 Bhayana, Amber Amar A1 Deora, Aarush A1 Khan, Livia YR 2020 UL http://casereports.bmj.com/content/13/12/e240926.abstract AB