Diseases Affecting the Eyes 223 



latter precaution is one of the most important parts 

 of the treatment. The infection is denoted by sup- 

 puration, and this delays successful treatment. If 

 sutures are used, fine wire is as good as anything, 

 but pins can be employed instead. Many prefer 

 adhesive plaster for bringing the torn edges together. 

 After being carefully adjusted paint the part with 

 Friar's balsam or styptic collodion. 



Inversion of the Eyelids (Entropium) 

 In this complaint the eyelid is turned inwards, and 

 sets up a considerable degree of ophthalmia, as the 

 eyelashes may be turned against the eyeball. The 

 only remedy for this trouble is an operation in which 

 a portion of the upper eyelid is removed. 



Eversion of the Eyelids (Ectropium) 



In this affection the eyelid is everted or turned 

 outwards, exposing the conjunctival membrane; it 

 is the upper lid that is commonly affected, and in 

 order to remedy this defect the mucous membrane 

 lining the everted lid has to be scarred by the appli- 

 cation of a caustic point. 



Both this and the previous abnormal condition 

 necessarily require professional skill for their treat- 

 ment. 



Cataract 



This is a permanently- diseased condition of the 



