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Mackenzie diagnosed the first iris cyst in 1830, which was a posttraumatic iris cyst in the anterior chamber. [2] Because of the wide variety of iris cysts, a categorization was needed. This categorization was proposed by Shields in 1981 and was based on 2 main groups: primary and secondary cyst.
Lisch nodule, also known as iris hamartoma, is a pigmented hamartomatous nodular aggregate of dendritic melanocytes affecting the iris, [1] named after Austrian ophthalmologist Karl Lisch (1907–1999), who first recognized them in 1937.
For iris: iris nevus, iris pigment epithelial cyst, iris stromal cyst, metastatic tumor of the iris, melanocytoma, iris atrophy and Cogan-Reese syndrome. For ciliary body: staphyloma, medulloepithelioma and leiomyoma. Prevention: Reduce UV exposure to the eye. Treatment
Pages in category "Disorders of iris and ciliary body" The following 13 pages are in this category, out of 13 total. ... Iris cyst; P. Panuveitis; Persistent ...
Koeppe's nodules are small nodules seen at the inner margin of the iris in patients with granulomatous anterior uveitis, which occurs in conditions such as sarcoidosis and tuberculosis. [1] The nodules are composed of epithelioid cells and giant cells surrounded by lymphocytes. [2] Koeppe's nodules are named after Leonhard Koeppe.
Iridectomy - Removal of the affected piece of the iris; Choroidectomy - Removal of the choroid layer (the vascular tissue sandwiched between the sclera and the retina) Iridocyclectomy - Removal of the iris plus the ciliary body muscle. Eyewall resection - Cutting into the eye to remove a tumor e.g. melanoma. This operation can be quite ...
English: A photo showing an iris cyst in a Sphynx cat. The cyst is characteristically semi-transparent and is attached to the pupil. Date: 21 November 2021: Source:
A cyst / s ɪ s t / is a closed sac, having a distinct envelope and division compared with the nearby tissue.Hence, it is a cluster of cells that have grouped together to form a sac (like the manner in which water molecules group together to form a bubble); however, the distinguishing aspect of a cyst is that the cells forming the "shell" of such a sac are distinctly abnormal (in both ...