TY - JOUR T1 - Hertel exophthalmometry: the most appropriate measuring technique JF - British Journal of Ophthalmology JO - Br J Ophthalmol SP - 1096 LP - 1096 DO - 10.1136/bjo.83.9.1096b VL - 83 IS - 9 AU - NIALL P O’DONNELL AU - MEENA VIRDI AU - EWAN G KEMP Y1 - 1999/09/01 UR - http://bjo.bmj.com/content/83/9/1096.3.abstract N2 - Editor,—The common method used in Hertel exophthalmometry involves aligning the corneal apex with the reference cone on the exophthalmometer and noting the position of this alignment on the millimetre scale (method 1). Keeler, the manufacturers of the exophthalmometer, recommend that the reference cone is aligned with the reference line on the millimetre scale and the position of the anterior … ER -