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What is Superior oblique testing for 4th nerve is done by checking its intorsion while asking the subjet to look - and explain in detail?
superior oblique is supplied by 4 cranial nerve- trochlear. Primary action of superior oblique is intorsion ( also called incycloduction- rotatory movement along anteroposterior axis in which superior pole of cornea (12 o clock point) moves medially.)secondary actions include depression and abduction.