The properties of monoamine oxidase activity in homogenates of the iris-ciliary body, superior cervical ganglion, and pineal gland of albino rabbits have been studied. Inhibition curves using specific inhibitors support the concept of A and B enzyme forms, with the following ratios of A/B activity: iris-ciliary body, 40/60; superior cervical ganglion, 90/10; pineal gland, 13/87. Experiments on ...

Microsomes of albino rabbit ocular tissues were incubated with (1-14C)-arachidonic acid for 15 min at 37 degrees C. Thin-layer chromatography revealed that ciliary body-iris microsomes were capable of synthesizing prostaglandin F2alpha (PGF2alpha), PGE2, PGD2, thromboxane B2(TXB2), and 6-keto-PGF1alpha. Indomethacin 14 micrometer in the incubation medium essentially abolished all prostaglandin ...

of Behçet syndrome: a 2-decade outcome survey of 387 patients followed at a dedicated center. Medicine (Baltimore) 2003;82:60–76. 10 Mousa AR, Marafie AA, Rifai KM, et al. Behçet’s disease in Kuwait, Arabia. A report of 29 cases and a review. Scand J Rheumatol 1986;15:310–32. 11 Atmaca LS. Fundus changes associated with Behçet’s disease. Graefes Arch Clin Exp Ophthalmol 1989;227:340–4. 12 Tugal...

Non-neoplastic inflammatory pseudotumors have been reported to arise at extraocular sites within the orbit" as well as in the posterior uveal tract."* Since their clinical appearance was indistinguishable from that of a malignant melanoma of the choroid, psuedotumors presenting as intraocular masses have been treated by enucleation and their true nature was not apparent until histologic examina...

Human ciliary body epithelial cells have been maintained in vitro and have been partially characterized by the determination of growth rate, morphology, and ultrastructural parameters. The dissection technique employed allows the separation of pure ciliary body epithelium with a predominance of cells being from the nonpigmented layer. Growth curves indicate this cell population follows a prolon...

Adenomas of the non-pigmented epithelium of the ciliary body are rare neoplasms and most of the studies are in the form of case reports. There are only 27 documented cases of acquired neoplasm of the non-pigmented ciliary epithelium (NPCE) reported in the English literature. In most reports, there was a clinical suspicion of melanoma and the diagnosis of NPCE adenoma was made on histopathologic...

Maintenance of pupillary constriction in light-adapted rodents has traditionally been thought to involve a reflex between retina, brain and iris, with recent work identifying the melanopsin-expressing intrinsically photosensitive retinal ganglion cells (ipRGCs) as the major conduits for retinal input to the brain. There is also a less well-understood phenomenon whereby the iris of some mammals,...

ALTHOUGH comparatively rare, spontaneous cysts of the ciliary body have evoked numerous contributions to the literature. The diagnosis is essentially clinical and differentiation from a melanosarcoma may be very difficult. These cysts were well named pseudo-melanosarcomata by Pagenstecher (1910). Before the report of Fischer (1920), the diagnosis of such cysts had been established only by histo...

Purpose. To discuss an unusual presentation of ocular toxocariasis. Methods. Case report. Results. A 40-year-old woman presented with decreased vision in the left eye with a long history of recurrent red eye from uveitis. Eosinophilia and positive ELISA titers for Toxocara canis favored the diagnosis of ocular toxocariasis. Over 3 months, an anterior scleral mass had a rapid growth raising the ...