THE EYE AND EYELIDS 113 



and the recti muscles are divided with scissors or scalpel as 

 lo^\■ down as possible ; the eyeball is then pulled upon or 

 made to protrude, and the last structures to be cut are the 

 optic ner\-e and vessels at the back of the orbit. Care must 

 be taken to clear out the cavity as neath- as possible. 



A solution of some styptic, such as adrenalin or liq. ferri 

 perchlor., is applied on a pad of wadding, the after-treatment 

 consisting merely in the application of antiseptics, a bandage 

 being used where it can be kept on. 



False eyes of glass, celluloid, vulcanite, etc., of the necessary 



Fig. 82. — Patterns of Glass Eyes for Dogs and Cats. 



colour and size can be obtained through an instrument-maker 

 or a naturalist, some ha\'ing a hollow posterior surface, and 

 others being solid. The choice must be made in accordance 

 with the condition of the orbit ; sometimes granulations occur 

 and almost completely lill up the ca\-ity, in which case an eye 

 ^^-ith a hollow back is not so likeh' to cause irritation. The 

 false eye should not be inserted for at least three or four 

 months after the eyeball has been removed, in order to allow 

 for complete healing, and also for a certain amount of 

 contraction of the orbit \\-hich usually takes place. For a few 



