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Individual differences |
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Von Graefe's sign (lid lag sign) is the immobility or lagging of the upper eyelid on downward rotation of the eye, indicating exophthalmic goiter (Graves' Disease).
A pseudo Graefe's sign shows a similar lag, but is due to aberrant regeneration of fibres of the oculomotor nerve (III) into the elevator of the upper lid.
- ↑ Cline D; Hofstetter HW; Griffin JR. Dictionary of Visual Science. 4th ed. Butterworth-Heinemann, Boston 1997. ISBN 0-7506-9895-0
- ↑ Definition: pseudo-Graefe sign from Online Medical Dictionary
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