1/51. Stability of vision during space flight in an astronaut with bilateral intraocular lenses.PURPOSE: To report excellent and stable vision in an astronaut during space flight after bilateral cataract surgery with intraocular lenses. methods: A 60-year-old physician mission specialist astronaut developed cataracts and underwent phacoemulsification with insertion of one-piece polymethylmethacrylate intraocular lenses that had 6-mm optics bilaterally. Several months later, he flew on a space shuttle mission. Ocular examinations were performed before and after the mission, and the patient was questioned about visual changes during flight. RESULTS: Ocular examinations demonstrated stable bilateral posterior chamber intraocular lenses. Our subject reported excellent vision during liftoff, 18 days of microgravity, changes in cabin pressure, and reentry. CONCLUSION: Results suggest that intraocular lenses are safe, effective, and well tolerated during space flight.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
2/51. A slit-lamp needling filtration procedure for uncontrolled glaucoma in pseudophakic and aphakic eyes.In one aphakic and one pseudophakic patient without previous filtration surgery, a transconjunctival needling procedure similar to that used for failed filtration procedures was performed to create a filtering bleb. In both cases, intraocular pressure was successfully lowered for 6 months until the occurrence of bleb encapsulation, which was relieved by transconjunctival needling. There were no complications. In selected cases, this minimally invasive slit-lamp needling procedure provides successful filtration.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
3/51. Production of anterior segment ischemia.Anterior segment ischemia changes can occur without detachment of any muscles. The most common cause of such ischemic changes of the anterior segment is the removal of too many rectus muscles in one operation. Twenty dog eyes and eight monkey eyes were subjected to the disinsertion and detachment of various combinations of extraocular muscles. They were sacrificed at intervals from 30 to 90 days. During the observation period, they were observed for gross and slit lamp changes. The enucleated eyes were studied microscopically for signs of ischemic and necrotic changes. Two patients who were studied, observed, and treated for anterior segment ischemia following muscle surgery are described. The changes which occur after muscle surgery are extensive and include corneal edema, cataract, chemosis, corneal changes, decreases in intraocular pressure, decreases in outflow or glaucoma and frank necrosis. The variables which lead to this reaction is described in detail. Also, some unanswered queries, such as the duration of the reaction and the time interval of the reaction after multiple muscle surgeries, are discussed.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
4/51. Systemic toxicity of topical and periocular corticosteroid therapy in an 11-year-old male with posterior uveitis.PURPOSE: To report a case of systemic corticosteroid toxicity resulting from topical and periocular therapy. methods: Treatment and follow-up of an 11-year-old male with uveitis are illustrated. Initial presentation of the patient was bilateral iridocyclitis, for which he was treated with prednisolone acetate 1% every 2 hours for 6 months. Subsequently, posterior uveitis developed, necessitating posterior subtenon injections. RESULTS: After initial topical corticosteroid therapy, the patient developed a cushingoid habitus accompanied by increased lanugo hair, acanthosis nigricans, posterior subcapsular lens opacities, and increased intraocular pressure. Cushingoid stigmata worsened after administration of posterior subtenon injection of corticosteroids. The patient's truncal obesity worsened, and his linear growth stopped. CONCLUSIONS: Systemic toxic effects may develop as a result of topical and local use of ophthalmic corticosteroid preparations in susceptible patients.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
5/51. Unilateral glaucoma in sotos syndrome (cerebral gigantism).PURPOSE: To report a patient with unilateral glaucoma associated with sotos syndrome. sotos syndrome (cerebral gigantism) is a disorder of growth and development with characteristic facial changes and normal endocrine function. Ocular manifestations may also include megalocornea, iris hypoplasia, cataracts, megalophthalmos, strabismus, nystagmus, and retinal dystrophy. methods: Case report. A 50 year-old man with the clinical features of sotos syndrome presented with complaints of decreased vision in the left eye. RESULTS: Ophthalmologic examination revealed bilateral megalocornea, megalophthalmos, iris hypoplasia and transillumination defects, cataracts, and unilateral glaucoma. intraocular pressure was lowered, and visual field loss was stabilized with topical medications. CONCLUSION: sotos syndrome patients should be examined routinely to allow for early detection and treatment of potential ocular problems, including glaucoma.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
6/51. safety and efficacy of intravitreal triamcinolone for cystoid macular oedema in uveitis.PURPOSE: To report the safety and efficacy of intravitreal triamcinolone in the treatment of inflammatory cystoid macular oedema (CMO) in six patients who were resistant to other forms of therapy. methods: An open-label unmasked prospective nonrandomized pilot study of six patients with idiopathic uveitis and visually significant macular oedema, resistant to periocular and/or systemic corticosteroid treatment, was carried out. Baseline examination and investigations were performed, including fundus fluorescein angiography, and the patients were given a single intravitreal injection of triamcinolone (4 mg/0.1 mL). The primary outcome measure was angiographic resolution of CMO. patients were reviewed at intervals of 2-4 weeks for 12 months. RESULTS: A single intravitreal injection of triamcinolone induced clinical and angiographic resolution of inflammatory macular oedema in all patients for varying periods of time up to 6 months. Five patients experienced increased intraocular pressure to 30 mmHg or greater which required treatment. Two patients developed posterior subcapsular cataract. CONCLUSION: One injection of intravitreal triamcinolone was an effective short-term treatment for resistant CMO in uveitis. As with steroids given by other routes, raised intraocular pressure and cataract may occur. As it was so effective in these eyes with resistant CMO, a larger study is warranted to evaluate this form of therapy.- - - - - - - - - - ranking = 2keywords = pressure (Clic here for more details about this article) |
7/51. Transient intraocular pressure elevation after trabeculotomy and its occurrence with phacoemulsification and intraocular lens implantation.PURPOSE: To elucidate the characterization of intraocular pressure (IOP) spike after trabeculotomy, and after the combined procedure of phacoemulsification and aspiration (PEA) and intraocular lens (IOL) implantation. methods: Included in this study were 39 patients (53 eyes) with primary open-angle glaucoma with IOPs uncontrolled even with anti-glaucoma medication. We conducted a retrospective study for the following two groups: patients who underwent trabeculotomy alone (25 eyes) and patients undergoing trabeculotomy combined with PEA and implantation of an IOL (28 eyes). RESULTS: In 7 (28%) of the 25 eyes after trabeculotomy alone and 7 (25%) of the 28 eyes after the combined procedure, transient IOP elevation was found postoperatively. The incidence of hyphema-related IOP spike was significantly higher in eyes after trabeculotomy alone (16%) than after the combined procedure (0%). After removal of the blood present in the anterior chamber in eyes with hyphema-related IOP spikes, the IOP levels were well controlled. CONCLUSIONS: hyphema-related IOP spike is one of the common complications in eyes after trabeculotomy alone, and the combined procedure decreases the incidence of this complication. It is thought that removal of prolonged massive hyphema is effective as treatment for hyphema-related IOP spike.- - - - - - - - - - ranking = 5keywords = pressure (Clic here for more details about this article) |
8/51. Cataract surgery with primary posterior chamber intraocular lens implantation in nanophthalmos.A 56-year-old Asian woman with nanophthalmos and cataract in the right eye underwent extracapsular cataract extraction with primary posterior chamber intraocular lens implantation of 31.0 D. Intraoperatively, there was severe vitreous upthrust; however, there was no vitreous loss and the lens could be placed in the posterior chamber. The patient's postoperative course was uneventful except for a moderate degree of coagulum over the lens. Her best-corrected visual acuity was 20/80. The patient required YAG capsulotomy one year later. Her intraocular pressure was under control without any medication. With appropriate precautionary measures, primary posterior chamber intraocular lens implantation can be performed in nanophthalmic eyes with a favorable visual outcome.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
9/51. Severe penetrating ocular injury from ninja stars in two children.The authors describe two cases of penetrating ocular trauma in children resulting from ninja stars. In the first case, despite a scleral laceration, loss of iris tissue, and a vitreous hemorrhage, the child had a good result with a final best corrected visual acuity of 20/20. Unfortunately, the child in the second case did not fare as well. In this case, the child suffered a large corneal laceration and traumatic cataract. He ultimately required a penetrating keratoplasty, and he is currently being treated for amblyopia, strabismus, and elevated intraocular pressures. His best corrected visual acuity is 20/70.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
10/51. anterior chamber hemorrhage during cataract surgery in Lowe syndrome.This article reports a spontaneous intracameral bleeding at the end of cataract surgery in both eyes of two patients with Lowe syndrome. Extracapsular cataract extraction with anterior vitrectomy and posterior capsulotomy, using the anterior chamber maintainer (ACM), was performed in both eyes of two patients. At the conclusion of the surgery, when the ACM was removed, spontaneous bleeding occurred into the anterior chamber and spread into the vitreous cavity. The hemorrhage resolved spontaneously over varying periods of time. We propose that bleeding occurred from damage to iris vessels in the abnormal angle in our patients with Lowe syndrome when the ACM was removed with a concomitant decrease in intraocular pressure.- - - - - - - - - - ranking = 1keywords = pressure (Clic here for more details about this article) |
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