▁describe ▁one ▁part ▁of ▁the ▁condition ▁of ▁the ▁eye ▁when ▁a ▁patient ▁has ▁an ▁o cul om ot or ▁n erve ▁p als y . ▁The ▁o cul om ot or ▁n erve ▁( c ran ial ▁n erve ▁III ) ▁supplies ▁the ▁inferior ▁ob lique ▁mus cle ▁( al ong ▁with ▁four ▁other ▁eye ▁mus cles ▁– ▁superior ▁rect us , ▁med ial ▁rect us , ▁inferior ▁rect us ▁and ▁the ▁stri ated ▁mus cle ▁of ▁lev ator ▁pal pe bra e ▁superior is ), ▁and ▁when ▁this ▁mus cle ▁is ▁non - function al ▁( as ▁in ▁o cul om ot or ▁p als y ) ▁the ▁eye ▁in cy cl ot ort s ; ▁i . e . ▁tw ists / rot ates ▁in ward . ▁ ▁Ex cy cl ot ors ion ▁is ▁a ▁term ▁applied ▁to ▁the ▁out ward , ▁t ors ional ▁( rot ational ) ▁movement ▁of ▁the ▁eye , ▁medi ated ▁by ▁the ▁inferior ▁ob lique ▁mus cle ▁of ▁the ▁eye . ▁The ▁inferior ▁ob lique ▁mus cle ▁is ▁inner v ated ▁by ▁c ran ial ▁n erve ▁III ▁( oc ul om ot or ▁n erve ). ▁Ex cy cl ot ors ion ▁may ▁also ▁be ▁used ▁to ▁describe ▁the ▁condition ▁or ▁state ▁of ▁the ▁eye ▁when ▁a ▁patient ▁has ▁a ▁c ran ial ▁n erve ▁IV ▁( t ro ch lear ▁n erve ) ▁p als y . ▁The ▁tro ch lear ▁n erve ▁supplies ▁the ▁superior ▁ob lique ▁mus cle , ▁and