Transactions . tion. Immediately about thecocci the tissue is necrotic, but farther away is a well-definedzone containing enormous numbers of polynuclear leuko-cytes, which form a definite pyogenic membrane. Carefulsearch in all the preparations failed to reveal a structure aboutthe bacterial mass suggesting the capsular substance de-scribed in cases of botryomycosis. Fig. 2 also shows anexudate which covers the ulcer and the epithelium and whichis composed of pus-cells and a hyaline-like substance inplaces distinctly greenish in color. This exudate is not lim-ited to the ulcerated regions but
Transactions . tion. Immediately about thecocci the tissue is necrotic, but farther away is a well-definedzone containing enormous numbers of polynuclear leuko-cytes, which form a definite pyogenic membrane. Carefulsearch in all the preparations failed to reveal a structure aboutthe bacterial mass suggesting the capsular substance de-scribed in cases of botryomycosis. Fig. 2 also shows anexudate which covers the ulcer and the epithelium and whichis composed of pus-cells and a hyaline-like substance inplaces distinctly greenish in color. This exudate is not lim-ited to the ulcerated regions but covers extensive areas ofepithelium. Fig. 4 shows a section at some distance from the the exudate is thick and dense, but of the same generalcharacter. It may be in close opposition with the under-lying epithelium, but a line of separation easily forms, ascan readily be seen at the left of the section. The epithe-lium has been everywhere invaded by leukocytes, and they GREENISH vjn Qcri I on EXUDATE. f MASSESOF COCCI Fig. 2.—Section througli marfiin of ulior. At tlic bottom are secMi massesof cocci surrounde;! by necrotic tissue. Al)o\( is the exudate composed ofpus-cells and a hyalin-!ike substance which in the sections often shows a^ tint. Ileniatoxvlin and eosin. X-35. r • « •7 Fi<j. 1.—Direct smear of conjunctivalexudate, showing the staphylococci singlyand in clusters. Gram stain. X 1200.
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectophthalmology, bookye
