. Pathology and bacteriology [electronic resource]. Ophthalmology; Eye; Eye; Bacteriology; Ophthalmology; Eye; Bacteriology; Eye. 86 ABERRATIONS IN DEVELOPMENT Optic vesicle, which form the pigment epithelium of the iris; but in the absence of any lamina irido-pupillaris no stroma of the iris was formed. The blood-vessels which should have supplied it passed instead into the mass of undifferentiated fibrous tissue. Congenital Glaucoma or Buphthalmia.—Congenital glau- coma can usually be accounted for by some defect in the development of the ligamentum pectinatum or canal Fig. 53.—Section throu
. Pathology and bacteriology [electronic resource]. Ophthalmology; Eye; Eye; Bacteriology; Ophthalmology; Eye; Bacteriology; Eye. 86 ABERRATIONS IN DEVELOPMENT Optic vesicle, which form the pigment epithelium of the iris; but in the absence of any lamina irido-pupillaris no stroma of the iris was formed. The blood-vessels which should have supplied it passed instead into the mass of undifferentiated fibrous tissue. Congenital Glaucoma or Buphthalmia.—Congenital glau- coma can usually be accounted for by some defect in the development of the ligamentum pectinatum or canal Fig. 53.—Section through an eye the subject of congenital glaucoma or buph- thalmia. There is an enlargement of the globe in all its diameters. Both cornea and sclerotic are stretched and thinned. The effect of the stretching on the lens has been to flatten it antero-posteriorly. The optic disc is cupped. of Schlemm, the main channels through which the intra- ocular fluid escapes from the eye. The cornea and sclerotic in an infant's eye are very expansile structures, and increase of tension occurring at that stage of life causes them to stretch, the whole globe becoming enlarged. An enlarge- ment of the cornea and deepening of the anterior chamber produces the appearance of a bullock's eye, hence the term "buphthalmia" (Fig. 53).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Collins, E. Treacher (Edward Treacher), 1862-1937; Mayou, M. Stephen (Marmaduke Stephen), 1876-1934; Pyle, Walter L. (Walter Lytle), 1871-1921, editor; University College, London. Library Services. London : William Heinemann
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