344 LECTURE XIV. 



to be the case in every form of keratitis, that the change 

 is essentially seated in the corpuscles or cells of the cor- 

 nea, and that in proportion as we approach the clouded 

 spot either from without or within, the little narrow cells 

 continually become larger and more cloudy. At last we 

 find them presenting almost the appearance of sacculated 

 canals or tubes. Whilst this enlargement of the elements, 

 this acute hypertrophy, if you will, is going on, the con- 

 tents of the cells are at the same time becoming more 

 cloudy, and it is this cloudiness of the contents which in 

 its turn occasions the opacity of the whole coat, for the 

 proper basis-substance appears to be altogether unaf- 



FIG. 102. 



fected. This cloudiness of the contents is in part occa- 

 sioned by particles which are of a fatty nature, so that 

 the process seems to have begun to assume the character 

 of a degenerative disease. I should have had no hesita- 

 tion in believing that a destruction of the cornea had here 



Fig. 102. Parenchymatous keratitis (cf. Fig. 99), seen with a higher power. At 

 A the cornea-corpuscles in a nearly normal condition, at B enlarged, aC C asd D 

 still more enlarged, and at the same time clouded 350 diameters. 



