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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Earliest symptom of thyroid ophthalmopathy -
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The correct answer is  Retraction of the upper lids producing the characteristic staring and frightened appearance (Dalrymple's sign ) in 90% of cases Ref. Ak khurana 6th edition pg no 414 ref img