CHAPTER XVI 



INJURIES OF THE GLOBE 



Injuries of the eyeball in general are simple con- 

 tusions, with rupture, incisions, punctures, and lacera- 

 tions. 



Contusions are produced by a blow with some blunt 

 object. Simple contusions without rupture may be ap- 

 parently tri\dal or much damage may be done. The 

 results of simple contusions are paralysis of the sphincter 

 pupillse, causing dilatation, rupture of the suspensory 

 ligament, dislocation of the lens, rupture of the border 

 of the iris, causing a separation and an opening (irido- 

 dialysis), hemorrhage in the anterior chamber, sub- 

 conjunctival hemorrhage, rupture of the chorioid, and 

 hemorrhage in the chorioid and retina. Contusions with 

 rupture of the globe is a frequent occurrence. Usually 

 the rupture takes place about the sclerocorneal margin 

 anteriorly. It may occur at any point, according to the 

 direction of the blow. The posterior portion of the 

 globe may also be ruptured in an irregular manner, and 

 a general rupture and displacement of the internal struc- 

 tures may occur. The following case, in a colored man, 

 is a good illustration: The man was struck with con- 



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