DISEASES OF THE EYE AND ITS APPENDAGES 



113 



secretion of tears. The only effective remedy is the performance of an 

 operation, which consists in taking away a portion of skin a little dis- 

 tance from the edge of the diseased lid, and running parallel to it, for the 



Fig. 249. Entropium or In-turned Eyelid 



1, Normal Eye. 2, Eye affected with Entropium (the in-turned lashes shown at A). 

 3, Eye affected with Entropium (front view). 



whole distance of the inverted part. The lips of the wound are then 

 brought together by sutures in such a way as to pull the inverted lid 

 outwards, and keep it in that position until the wound artificially made 



Fig. 250. Ectropium or 

 Everted Eyelid 





Fig. 251. Ectropium or Everted Eyelid 

 (Front View) 



heals. On this being completed, the eyelid is found to occupy its natural 

 position, and the trouble ceases. 



Ectropium. This condition is exactly the opposite of the one pre- 

 viously described; the affected lid is turned outwards instead of inwards, 

 exposing the conjunctival membrane with which it is lined. Like the other 

 deformity, this usually results from burns or from inflammation of the 

 conjunctiva, and almost invariably affects the lower lid. To correct this, 



VOL. II. 



42 



