. Pathology and bacteriology [electronic resource]. Ophthalmology; Eye; Eye; Bacteriology; Ophthalmology; Eye; Bacteriology; Eye. 226 NEOPLASMS degeneration and liquefaction of the cells in the centre of it, or by its extension round a cavity, such as the anterior chamber (Figs. 120, 121). The contents of traumatic cysts produced in any of the above ways vary according to the character of the lining epithelium. It may be fatty epithelial debris containing cholesterin crystals, or a clear, or slightly turbid, Fig. 122.—Section of the anterior half of an eye with a cyst in the iris, foll
. Pathology and bacteriology [electronic resource]. Ophthalmology; Eye; Eye; Bacteriology; Ophthalmology; Eye; Bacteriology; Eye. 226 NEOPLASMS degeneration and liquefaction of the cells in the centre of it, or by its extension round a cavity, such as the anterior chamber (Figs. 120, 121). The contents of traumatic cysts produced in any of the above ways vary according to the character of the lining epithelium. It may be fatty epithelial debris containing cholesterin crystals, or a clear, or slightly turbid, Fig. 122.—Section of the anterior half of an eye with a cyst in the iris, follow- ing on the implantation of an eyelash into the eye. The square to which a points is the part shown in Fig. 123 more highly magnified. X 10. Recorded in Trans. Ophth. Soc. of the U. K., XIII, 1893, 199. Implantation cysts have been produced experimentally in rabbits' eyes by the introduction into the anterior cham- ber of small pieces of skin, conjunctiva, or corneal epithe- lium.^ They usually occur in man as the result of punctured wounds. Epithelial pearl tumours may form around an eyelash when it becomes implanted in the interior of the eye; they arise from the cells of its root sheath (Figs. 122,123). Traumatic cysts lined by epithelium have been met with in the orbit, conjunctiva, cornea, anterior chamber, iris, and vitreous chamber. In the conjunctiva they form small blister-like eleva- tions. In the cornea they are usually only discovered on ^ E. Masse. "Kystes, tumeurs perlees et tumeurs dermoides de I'iris," 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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