28 



Fig. 6. 

 Keratitis Punctata — Inflammation of the internal or posterior 

 layer of the cornea produces a spotted apacity ; the dots or opaque 

 white spots may be larger or smaller than those in the cut and may 

 extend over the entire surface of the cornea. Another form of kera- 

 titis punctata is developed as mentioned in the text. 



If the middle layer or principal part of the cornea be in- 

 flamed, the opacity develops slowly, is grayish blue, gray or 

 light gray in color. The opacity is generally irregular in 

 form — cloudy, striped or ray shaped; these points or spots 

 extend over the entire cornea. When inflammation produces 

 such spotted or irregular dotted opacity, it is designated 

 keratitis punctata (see Fig. 6). This spotted appearance 

 of the cornea is due to the dotted opacities in the outer layer 

 while the inner layer may be evenly clouded in all its parts. 

 The deeper seated opacity may be observed by viewing the 

 cornea from one side ; this is perceived best by illuminating 

 the eye in a dark stall or room. A yellow colored, sharply 

 limited opacity, announces the formation of a corneal ab- 

 scess. 



Shunning the light and an excessive flow of tears are al- 

 ways present during inflammation of the outer surface of the 

 cornea or the formation of an abscess. In acute cases the 

 opacity may entirely or partially disappear in three to six 

 weeks. Should the opacity continue longer, from improper 

 treatment or non-disappearance of the cause, vascularization 

 (formation of bloodvessels) with abscess formation or ulcer- 



