Which sign involves globe lag relative to lid movement when the patient looks upward?

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Study for the NBEO Ocular Disease Part 1 Test. Use flashcards and multiple choice questions, each with hints and explanations, to prepare for your exam! Get ready for your success!

Multiple Choice

Which sign involves globe lag relative to lid movement when the patient looks upward?

Explanation:
In Graves orbitopathy, the extraocular muscles and surrounding tissues become inflamed and fibrotic, leading to abnormal coordination between eyelid and globe movements. Kocher's sign is the globe lag that occurs when the patient looks upward—the upper lid moves into position quickly, but the eyeball itself lags behind. This dyssynchrony reflects restricted or altered muscle function from the orbital inflammatory process.

In Graves orbitopathy, the extraocular muscles and surrounding tissues become inflamed and fibrotic, leading to abnormal coordination between eyelid and globe movements. Kocher's sign is the globe lag that occurs when the patient looks upward—the upper lid moves into position quickly, but the eyeball itself lags behind. This dyssynchrony reflects restricted or altered muscle function from the orbital inflammatory process.

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