DISEASES OF THE CORNEA 95 



Sharpen a matchstick or wooden toothpick, wind a small 

 piece of cotton on this so that it will point sharply 

 beyond the point of the stick, dip it in the iodin tincture, 

 but do not have so much on the cotton that it will drop 

 or run. Hold the lids well open, and paint the surface 

 of the ulcer, using care that none touch the other por- 

 tions of the cornea. Keep the Hds open a short time 

 until the alcohol has evaporated. This operation may 

 be repeated every two or three days if necessary. Most 

 admirable results have followed this method of treat- 

 ment. The writer has used iodin- vasogen in place of the 

 tincture of iodin in some cases with good results. 



In place of the iodin, or in conjunction with it, after 

 the immediate irritation has subsided, powders may be 

 dusted into the eye. Iodoform is one of the best, either 

 in full strength or mixed with equal parts of fine boric 

 acid. This fills the ulcer, destroys bacteria, absorbs 

 secretion, and has, to some extent, an anesthetic effect. 

 When powders are used in the eye, the finest quality, 

 free from lumps and foreign matter, should be selected. 

 They may be used in a powder-blower or, better, dip 

 a camels' hair brush into the fine powder, hold it in front 

 of the eye between the thumb and second finger, and 

 give it a quick strike with the index-finger, which will 

 cause the powder to fly into the eye. Aristol and 

 calomel are sometimes used in these cases. 



Antiseptic and stimulating ointments are of much 

 benefit after the sloughing process has subsided. Among 



