A 53-year-old woman presented with a 3-month history of markedly asymmetric thyroid eye disease clinical activity scores (CAS) 7 in her right (OD) and 1 left (OS). She had no diplopia. Exophthalmometry measured 27 mm OD 18 OS (Fig A-F). Best corrected visual acuity was 20/20 both eyes (OU). Following 8 infusions teprotumumab over 24 weeks, exophthalmometry 22 17 OS, CAS OU, appearance more symm...