Exotropia and Esotropia

Thank you so much for such a great website.
I was reading the “Cranial Nerves Summary” under “Cranial Nerve Examination”.
Under “Cover Test” examination, It was mentioned that “Eye moves nasally = divergent squint (exotropia)”. But Exotropia is a form of strabismus where the eyes have deviated outward.

Please correct me if I am wrong.

Hi @Max

Yes, you’re correct that an Exotropia involves the eye being deviated outwards. However, the part of the guide you have quoted is talking about the cover test. In this test, when the unaffected eye is covered, the eye with the squint corrects its position. If the eye is deviated outwards (e.g. exotropia), this correction involves the eye moving in the nasal direction. Hopefully, that makes sense.

Sorry for a late reply.
I got your point now! :sweat_smile:

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