1/72. 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) |
2/72. 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) |
3/72. Surgical management of recurrent iris stromal cyst.PURPOSE: To report the clinical history and surgical management of recurrent congenital iris stromal cyst. METHOD: Case report. argon laser endophotocoagulation and cryotherapy were used to treat a recurrent iris stromal cyst in an 18-month-old boy. RESULTS: At 43 months of follow-up, there was no recurrence or evidence of epithelial ingrowth. CONCLUSION: Treatment with argon laser endophotocoagulation and cryotherapy resulted in complete resolution of a recurrent congenital iris cyst.- - - - - - - - - - ranking = 1.4keywords = iris (Clic here for more details about this article) |
4/72. Needle aspiration and endodiathermy treatment of epithelial inclusion cyst of the iris.PURPOSE: To report a case of recurrent epithelial inclusion cyst of the iris treated with needle aspiration and endodiathermy. methods: Case report. A 27-year-old man with a history of congenital cataracts, congenital nystagmus, cataract surgery in each eye at 3 years of age, and a long-standing iris epithelial cyst presented with decreased vision of 20/400 in the better seeing left eye. The reduced vision was diagnosed secondary to growth of the iris inclusion cyst over the pupil. RESULTS: The iris cyst, which occluded the chamber angle and pupil, was treated with aspiration, separation of the cyst wall from the cornea, and endodiathermy. Twelve months after cyst surgery, no evidence existed of epithelial cyst regrowth. The visual function was significantly improved, although Snellen visual acuity was unchanged at 20/400. CONCLUSION: The minimal invasiveness of needle aspiration and diathermy can result in a satisfactory outcome without undertaking more extensive and invasive surgical treatments for epithelial inclusion cysts of the anterior chamber.- - - - - - - - - - ranking = 1.6keywords = iris (Clic here for more details about this article) |
5/72. Three-dimensional ultrasound findings of the posterior iris region.PURPOSE: The aim of this study was to assess the benefit of the three-dimensional ultrasound biomicroscopy in examination of the posterior iris and ciliary body. methods: Three-dimensional visualisation of the anterior eye section was achieved through extension of the existing ultrasound biomicroscope system (Humphrey Instruments). Visualisation of posterior iris and ciliary body pathologies in three patients was performed with a three-dimensional reconstruction technique of B-scans. RESULTS: The extended ultrasound system provided three-dimensional visualisation of alterations of the posterior iris region, i.e. iris cysts, ciliary body cysts and solid tumours of the ciliary body and iris. CONCLUSIONS: The three-dimensional ultrasound biomicroscopy yields extended diagnostic findings regarding iris and ciliary body pathology. This method offers an improved assessment of the posterior surface of the iris and the volume of the ciliary body. Furthermore, these data can be useful for procedures in computer simulation and calculation for a better understanding of the function of the ciliary body in the accommodation process.- - - - - - - - - - ranking = 2.2keywords = iris (Clic here for more details about this article) |
6/72. Recurring transitory blindness caused by primary marginal pigment epithelial iris cysts.PURPOSE: To report four cases of primary pupillary pigment epithelial iris cysts, all members of one family, in which two of the patients had recurring transitory visual impairment. methods: Observational case series. history was taken, the patients were examined with slit-lamp and ultrasound biomicroscopy, and surgically removed cyst tissue was examined with transmission electron microscopy. RESULTS: Pupillary pigment epithelial cysts of the iris generally show an autosomal dominant heredity pattern, with occasional lack of penetrance. In two of our cases, the size and location of the cysts caused visual symptoms, necessitating surgical removal. The cyst wall consists entirely of pigment epithelial cells. CONCLUSION: The origin of pupillary pigment epithelial cysts is unclear, and a hereditary background is very likely. Their clinical significance is in their similarity to pigmented tumors of the iris. They may also be indicative of coexisting systemic disease. In symptomatic cases, treatment is indicated.- - - - - - - - - - ranking = 1.4keywords = iris (Clic here for more details about this article) |
7/72. recurrence of iris stromal cyst following aspiration and resection.We describe a 3-month-old patient with a primary epithelial cyst of the iris stroma. Although these cysts account for 16% of all childhood iris cysts, these cysts are uncommon with only a small number of reported cases.(1-6) Because our patient's cyst had amblyogenic potential, we proceeded with surgical treatment. The cyst was aspirated, but it recurred within 7 weeks. Sector iridectomy with excision of the cyst was performed, again with recurrence and subsequent glaucoma and cataract. These cysts present difficult management issues concerning the choice of initial surgical treatment and subsequent complications.- - - - - - - - - - ranking = 1.2keywords = iris (Clic here for more details about this article) |
8/72. Presumed epithelial inclusion cyst of the iris seven years after radial keratotomy.PURPOSE: To report a case of presumed epithelial inclusion cyst of the iris 7 years after radial keratotomy (RK) that was treated with double-frequency Nd:YAG laser (532 nm). methods: A young adult woman underwent bilateral RK for the correction of myopia of -4.50 Diopters 7 years prior to the development of a white mass in the anterior chamber of her left eye. There was no evidence of any other surgery or trauma to the eye during this period. An epithelial inclusion cyst of the iris was diagnosed, and double-frequency Nd:YAG laser (532 nm) was used to coagulate the cyst under topical anesthesia. RESULTS: The size of the cyst reduced significantly immediately following laser treatment, and the prelaser visual acuity of 6/12 was maintained at 6 months' follow-up without any recurrence. CONCLUSIONS: In the absence of evidence of any other surgery or trauma, the most likely cause of the epithelial inclusion cyst of the iris following RK is epithelial seeding from the original surgery, which is amenable to coagulation with double-frequency Nd:YAG laser.- - - - - - - - - - ranking = 1.4keywords = iris (Clic here for more details about this article) |
9/72. Bilateral ocular malformations in a newborn with normal karyotype: histologic findings.microphthalmos with cyst is a rare condition characterized by a small globe and an inferior uveoretinal coloboma. There is also a defect in the posterior aspect of the eye through which a cyst lined by neuroectodermically derived tissue protrudes into the orbit. A case of isolated bilateral colobomatous and cystic microphthalmos is reported in an otherwise healthy child, showing no evidence of chromosomal abnormalities. Microscopic findings in the enucleated eye consisted of iris and retinal dysgenesis, ectopia lentis, persistent anterior tunica vasculosa lentis and pupillary membrane, intrachoroidal smooth muscle, and optic nerve hypoplasia. In the orbital cyst, a thick membrane reminiscent of the retinal inner limiting membrane lay between the fibroadipose and vascularised outer wall and the inner neuroectodermal lining.- - - - - - - - - - ranking = 0.2keywords = iris (Clic here for more details about this article) |
10/72. iris cyst secondary to latanoprost mimicking iris melanoma.PURPOSE: To report an ocular side effect of topical latanoprost therapy. DESIGN: Single interventional case report. methods: A 73-year-old woman on latanoprost for primary open-angle glaucoma developed an iris cyst simulating an iris melanoma. RESULTS: The lesion disappeared over 8 weeks when latanoprost was stopped. CONCLUSIONS: In managing patients with iris-pigmented lesions, the list of medications should be reviewed. If the patient takes latanoprost, a trial off latanoprost is warranted.- - - - - - - - - - ranking = 1.4keywords = iris (Clic here for more details about this article) |
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