YETEUINAKY OPHTHALMOLOGY. 83 



SO here we are. It may be complete or partial. Again, 

 it may be anterior, between the cornea and the equator 

 or posterior, around the optic nerve. Anterior staphly^ 

 loma hks a dirty bluish color from the choroid shining 

 through, and is of variable size, sometimes, indeed, in- 

 volving the whole front of the eye. Where the tumor 

 is small, paracentesis with pressure may check further 

 progress. If very extensive it may be necessary to 

 enucleate the eye. When the bulging extends all 

 around the sclera is called annular staphyloma, and 

 when comj)lete may protrude so far as to be called 

 hnphihalmus. 



Injuries of the Sclera. — Dangerous, as they com- 

 plicate adjoining tissued and "fis they permit contents 

 of the eye to escape. Small wounds may heal 

 readily. Clearly cut, may be united by a fine suture ; 

 any protruding choroid oi- vitreous must he cut off with 

 scissors first.- Patient kept quiet, and ice compresses 

 employed. If the wound is extensive and in the ciliary 

 region, enucleate and thus avoid sympathetic trouble. 



