VETERINARY OPHTHALMOLOG7. 49 



paralysis, individually and collectively. When indivi- 

 dual muscles are affected we find restricted motion — - 

 ■converse to the actioii of the muscle when physiolo- 

 gically exerted. If complete paralysis of the third pair 

 •occurs, then have ptosis, some exophthalmus, ditto 

 ■dilatation of the pupil and accommodation paralyzed. 

 Movements restricted in all directions, except directly 

 outward. 



StraMsimus or Sq[uint. — Many varieties. Usually 

 mono-lateral, which is a faulty position of one eye. May 

 be alternating — the ability to fix with either eye. 

 Also have intermittent or constant. 



Treatment is operative; divide the tendon of the 



contracting muscle.' 

 4 



