Ophthalmology Diseases of orbit, Lids and lacrimal apparatus 7e5650e5 Earliest symptom of thyroid opthalmopathy- A Proptosis B Lid retraction C Opthalmoplegia D Diplopia High-Yield Explanation *The Most common and earliest symptom is upper eyelid retraction. Ref: Head & Neck surgery 2nd/e p.1513