304 BROOKE. 



staff referred to previously, 100. Out of this material I found 137 cases 

 of conjunctivitis. On examination these proved to be : 



1. Catarrhal: 



Koch-Weeks bacillus 



Gram-positive bacillus 



Morax-Axenfeld bacillus 



2. Granular: 



Trachoma 



3. Purulent: 



Gonorrhceal _ 



Staphylococcal 



4. Unclassified, but not trachoma 





Per cent 



75' 





20 



.=73.7 



6 J 





7 = 5.1 



3 

 1 



25 





Total 137 



The subject of conjunctivitis may be divided into the following 

 headings : 



1. Catarrhal: 



(a) Acute, 

 (o) Chronic, 

 (c) Follicular. 



2. Granular. 



3. Purulent: 



(a) Gonorrhceal. 



(6) Ophthalmia neonatorum. 



4. Membranus: 



(a) Croupous. 



(b) Diptheritic. 



5. Phlyctenular. 



We need not here concern ourselves with purulent, membranous and 

 phlyctenular conjunctivitis, for the cause and treatment is well known 

 to all ; but the catarrhal and granular types are less definite and therefore 

 of greater interest at present. 



CATARRHAL CONJUNCTIVITIS. 



There are many synonyms for this affection, such as catarrhal 

 ophthalmia, blight, sore eyes, bright eye, etc. The nomenclature is 

 unfortunate, as many cases do not present a condition, which coincides 

 with our understanding of what constitutes a catarrh at all, but the 

 term catarrhal conjunctivitis is still preserved in the acute form for 

 want of a better one. 



Etiology. — As far as work has gone at the present time, we find acute 

 catarrhal ophthalmia 10 be brought about by at least three different 

 causes: (a) The Koch-Weeks bacillus; (b) a Gram-positive organism; 

 and (c) the Morax-Axenfeld bacillus. A similar etiology will also be 

 found in the incipient stages of purulent and of granular conjunctivitis. 



