. Pathology and bacteriology [electronic resource]. Ophthalmology; Eye; Eye; Bacteriology; Ophthalmology; Eye; Bacteriology; Eye. 466 INFLAMMATION In iritis, the stroma of the iris is infiltrated and the exu- date appears principally on its anterior surface. The fibrin- ous exudate and swelling of the stroma tend to obliterate the crypts on the surface of the iris, causing obscuration of its pattern and discolouration. Fibrinous coagula may also form and collect at the bottom of the anterior chamber. As the inflammatory process subvsides the exudate gradually becomes absorbed, but the iris, es
. Pathology and bacteriology [electronic resource]. Ophthalmology; Eye; Eye; Bacteriology; Ophthalmology; Eye; Bacteriology; Eye. 466 INFLAMMATION In iritis, the stroma of the iris is infiltrated and the exu- date appears principally on its anterior surface. The fibrin- ous exudate and swelling of the stroma tend to obliterate the crypts on the surface of the iris, causing obscuration of its pattern and discolouration. Fibrinous coagula may also form and collect at the bottom of the anterior chamber. As the inflammatory process subvsides the exudate gradually becomes absorbed, but the iris, especially after many attacks, becomes thin and atrophic and in some instances permanently Fig. 234.—Shows the iris drawn back into the angle of the anterior chamber, from the organisation of fibrous tissue on its anterior surface, the result of iritis following a perforating wound. P points to the pigment epithelium which has become drawn round the pupillary margin, and covers the whole of what there is left free of the anterior surface of the iris. The exudation may cause adhesions between the pos- terior surface of the iris and the anterior capsule of the lens (posterior synechiae). If this occurs at the margin of the pupil in its entire circumference it is known as a secluded pupil, while if the lymph cover also the anterior capsule of the lens in the pupillary area it is known as an occluded pupil. The aqueous secreted into the posterior chamber, bulges forward the iris, producing a condition. 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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