1/266. Surgical removal of a free floating cyst of the iris pigment epithelium causing disturbing visual symptoms.Pigmented cysts in the anterior chamber, fixed or free floating, are considered to be unusual but not very infrequent. However, most of these cases usually do not need any treatment other than a periodic observation. We report the surgical removal of an iris pigment epithelial cyst floating freely in the anterior chamber. The reason for surgical removal was, disturbance in near vision being caused by movement of the cyst across the visual axis. This specific symptom of disturbed near vision, to the best of our knowledge, is a rare indication for surgery that has not been pointed out earlier. Histopathological confirmation of the clinical diagnosis was also obtained.- - - - - - - - - - ranking = 1keywords = iris (Clic here for more details about this article) |
2/266. Long-term outcome of aqueous shunt surgery in ten patients with iridocorneal endothelial syndrome.PURPOSE: To report the long-term outcome of ten patients with iridocorneal endothelial (ice) syndrome who underwent aqueous shunt surgery for uncontrolled glaucoma. DESIGN: Noncomparative, retrospective case series. PARTICIPANTS: The authors reviewed charts of ten patients with ice syndrome-related glaucoma who underwent aqueous shunt surgery at one institution between 1987 and 1996. MAIN OUTCOME MEASURES: intraocular pressure (IOP), number of glaucoma medications, and further surgical interventions were measured. RESULTS: With a median follow-up of 55 months, four eyes had adequate IOP control (IOP <21 mm Hg) with one or two medications after the initial aqueous shunt surgery. An additional three eyes achieved adequate IOP control after one or more tube repositionings or revisions of the initial aqueous shunt. In this series, the aqueous shunt surgery most often failed because of blocking of the tube ostium by iris, ice membrane, or membrane-induced tube migration. CONCLUSION: Aqueous shunt surgery appears to be an effective method for IOP lowering in some eyes with ice syndrome-related glaucoma when medical treatment or conventional filtration surgeries fail, but additional glaucoma procedures and/or aqueous shunt revisions and tube repositionings are not uncommon.- - - - - - - - - - ranking = 0.2keywords = iris (Clic here for more details about this article) |
3/266. Severe iridodialysis from phacoemulsification tip suction.During cataract surgery, the iris of an 83-year-old woman was strongly sucked into the phacoemulsification tip twice, resulting in severe iridodialysis. The dehisced iris was sutured to the sclera using double-armed 10-0 polypropylene on a long curved needle. Intensive suction of the iris by the phacoemulsification tip can lead to severe iridodialysis. Machine setting parameters, particularly flow rate, should be lowered after the first iris suction to avoid further iris damage.- - - - - - - - - - ranking = 1keywords = iris (Clic here for more details about this article) |
4/266. Two female siblings with a previously unreported MCA/MR syndrome: pre- and postnatal growth retardation, iris colobomata, spasticity, facial dysmorphism and dilated ventricles.We report two siblings from non consanguineous parents with a similar MCA/MR syndrome: Pre- and postnatal growth retardation, microcephaly, mental retardation, iris colobomata, facial dysmorphism, spasticity, dilated ventricles and abnormal immunoglobulin levels. review of published reports and the use of the london Dysmorphology database suggests that these siblings may present a new syndrome.- - - - - - - - - - ranking = 1keywords = iris (Clic here for more details about this article) |
5/266. cataract surgery combined with implantation of an artificial iris.We describe 6 patients who presented with cataract or aphakia and absent or nonfunctional irides. The etiologies included congenital aniridia, traumatic iris loss, and chronic mydriasis secondary to recurrent herpetic uveitis. In 5 eyes, a prosthetic iris was successfully implanted in combination with small incision cataract surgery. In 2 eyes, a single-piece iris diaphragm and optical lens was implanted. Artificial irides offer a safe alternative for patients who previously had no viable options for iris reconstruction.- - - - - - - - - - ranking = 1.6keywords = iris (Clic here for more details about this article) |
6/266. Iridocorneal adhesions in patients with the marfan syndrome.marfan syndrome is an autosomal dominant connective tissue disorder characterized by skeletal, cardiovascular, and ocular anomalies. ectopia lentis is the most common ocular manifestation. We report an ocular sign not previously described in marfan syndrome, iridocorneal adhesions secondary to anterior lens subluxation. Three patients with the marfan syndrome had iridocorneal adhesions on slit-lamp examination. One patient developed adhesions following treatment with pilocarpine. She underwent pars plana vitrectomy and lensectomy in both eyes due to progression of the iridocorneal adhesions. Treatment with miotics rotates the lens-iris diaphragm anteriorly and may contribute to the formation of such adhesions. The two other patients remained stable and did not received lensectomy or vitrectomy. Careful slit-lamp examination of the anterior segment should be conducted in patients with dislocated lenses.- - - - - - - - - - ranking = 0.2keywords = iris (Clic here for more details about this article) |
7/266. Laser iridocystotomy for bilateral acute angle-closure glaucoma secondary to iris cysts.PURPOSE: To report laser iridocystotomy for bilateral acute angle-closure glaucoma secondary to peripheral iris cysts. METHOD: Case report. RESULTS: In a 55-year-old man with increased bilateral intraocular pressure, gonioscopy revealed varied angle narrowing. Bilateral angle-closure glaucoma secondary to peripheral iris cysts was diagnosed by ultrasound biomicroscopy. The peripheral iris cysts could not be seen in mydriasis by gonioscopy. Therefore, we decided to perform laser iridocystotomy with argon and Nd:YAG laser. Collapse of the cysts after laser treatment was demonstrated by ultrasound biomicroscopy. At follow-up, 9 months after laser treatment, intraocular pressure had dropped below 20 mm Hg in both eyes without further therapy. The iris cysts did not recur, which was demonstrated by ultrasound biomicroscopy. CONCLUSIONS: Peripheral iris cysts may produce angle closure and may cause secondary angle-closure glaucoma. If transpupillary laser cystotomy is not possible, laser iridocystotomy may produce collapse of the iris cysts and correction of secondary angle closure.- - - - - - - - - - ranking = 2keywords = iris (Clic here for more details about this article) |
8/266. Latanoprost-induced iris color darkening: a case report with long-term follow-up.PURPOSE: To determine the effect on iris color of discontinuing latanoprost (LP) treatment in a patient with pronounced iris color darkening, and to assess the possible role of sympathetic innervation. methods: In a patient demonstrating pronounced iris color darkening in both eyes after treatment with LP for 6 months, magnified iris color photographs were taken at 3- to 6-month intervals for 5 years after discontinuation of LP treatment. Pupillary testing for sympathetic insufficiency was performed with cocaine 10% or hydroxyamphetamine 1%. RESULTS: The iris color did not appreciably change after discontinuing LP. The cocaine-induced increase in pupillary diameter was considerably greater for the control subject than for the patient who demonstrated the LP-induced color change. CONCLUSIONS: Latanoprost-induced iris color darkening does not appreciably change for several years after discontinuing treatment. Some eyes that show LP-induced darkening may have relative ocular sympathetic insufficiency.- - - - - - - - - - ranking = 2keywords = iris (Clic here for more details about this article) |
9/266. Hamartomas of the iris and ciliary epithelium in tuberous sclerosis complex.Astrocytic hamartomas of the retina are the principal ocular manifestation of tuberous sclerosis complex. iris abnormalities are rare in tuberous sclerosis complex and include focal areas of stromal depigmentation and atypical colobomata. We describe 2 patients who were found on histopathological examination to have lesions consistent with hamartomas of the iris pigment epithelium and ciliary body epithelium. iris abnormalities, including pupillary irregularities, were noted on clinical examination prior to the development of iris neovascularization in both patients. These observations suggest that iris abnormalities, including atypical colobomas, may be caused by hamartomas of the iris pigment epithelium and ciliary epithelium in some patients with tuberous sclerosis complex. To our knowledge, hamartomas of tissues derived from the anterior part of the neuroectodermal optic cup have not been reported in cases of tuberous sclerosis complex.- - - - - - - - - - ranking = 1.6keywords = iris (Clic here for more details about this article) |
10/266. iris mammillations as the only sign of ocular melanocytosis in a child with choroidal melanoma.An 8-year-old girl had visual loss in her left eye over 2 months. Ocular examination showed that visual acuity was counting fingers in the left eye. The left iris was moderately pigmented and thickened with numerous confluent, dome-shaped elevations on its surface, consistent with iris mammillations arising from ocular melanocytosis. There was total retinal detachment and an inferiorly located large amelanotic choroidal mass compressing the optic nerve. A specimen from a fine-needle aspiration biopsy showed spindle and epithelioid melanoma cells. The eye was enucleated. Pathologic examination showed that the bland melanocytes comprising the anterior border layer of iris formed focal aggregates, corresponding to the iris mammillations observed clinically. The uvea was diffusely thickened. Arising from the posterior choroid and obscuring the optic nerve head was a moderately pigmented spindle and epithelioid cell choroidal melanoma with diffuse lymphocytic infiltration and high mitotic activity. This case demonstrates that iris mammillations can be the initial manifestation of ocular melanocytosis in the absence of scleral pigmentation.- - - - - - - - - - ranking = 1keywords = iris (Clic here for more details about this article) |
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