Extraocular muscle involvement in thyroid associated orbitopathy (mnemonic)
Last revised by Mostafa El-Feky ◉ on 18 Oct 2019
A mnemonic to remember the order in which extraocular muscles are involved in thyroid-associated orbitopathy (TAO) is:
- I'M SLOw
Mnemonic
- I: inferior rectus
- M: medial rectus
- S: superior rectus
- L: lateral rectus
- O: obliques muscles (superior oblique and inferior oblique)
There is some debate about this however. Some claim superior rectus is most frequent 2, but the mnemonic "SIMLOW" is not as memorable.
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