To study the effects of intracameral injection of triamcinolone acetonide on visualizing and removing the vitreous body from the anterior chamber in cataract surgery. Observational case series. Six eyes of six patient...To study the effects of intracameral injection of triamcinolone acetonide on visualizing and removing the vitreous body from the anterior chamber in cataract surgery. Observational case series. Six eyes of six patients had the posterior capsule ruptured and the vitreous body prolapsed or incarcerated into the anterior chamber during cataract surgery. To visualize vitreous body, triamcinolone acetonide solution was injected into the anterior chamber and the vitreous body was resected. The intraoperative findings, results, and complications were evaluated. Vitreous body was well observed under surgical microscopy and was resected safely and completely. Minimum inflammation was observed postoperatively, and the patients obtained good visual acuity. No serious complications were found. One eye showed increased intraocular pressure (40 mm Hg), which was normalized by additional washing of the anterior chamber. Appropriate use of intracameral triamcinolone acetonide is beneficial to visualize and remove the vitreous body from the anterior chamber during cataract surgery, and sufficient washing of the anterior chamber is necessary to avoid complications.展开更多
Objective: To study the effects of volcanic ash on the ocular symptoms of schoolchildren ages 6 to 15 residing near Mt. Sakurajima, an active volcano. Design: Retrospective, crosssectional study. Participants: A total...Objective: To study the effects of volcanic ash on the ocular symptoms of schoolchildren ages 6 to 15 residing near Mt. Sakurajima, an active volcano. Design: Retrospective, crosssectional study. Participants: A total of 10 380 children ages 6 to 15, 1175 in a high- exposure area and 9205 in a low- exposure area, were studied. Methods: High- and low- exposure areas for volcanic ash were selected. All subjects in both areas were examined annually each September in the decade from 1994 to 2003. Main Outcome Measures: The frequency of positive ocular symptoms in years with and without active volcanic eruptions was compared. The association of ocular symptoms with volcanic ash dispersal was assessed with the Mantel- Haenszel test or chi- square test. Results: Subjects in the high- exposure area showed ocular symptoms more often than those in the lowexposure area (P< 0.0001). Years of active volcanic eruptions (volcanic ash of 5000 g/m2/year or more) were closely related to years with a high frequency of ocular symptoms in subjects in the high- exposure area (P< 0.05) but related conversely in subjects in the low- exposure area (P< 0.01). Major ocular symptomswere redness, discharge, foreign body sensation, and itching, all treated effectively with eyedrops. Conclusions: Ocular symptoms in subjects were strongly influenced by volcanic eruptions in the Mt. Sakurajima area, but direct influence was limited to those living in areas very near the volcano (i.e.,4 km from the volcano’ s crater).展开更多
文摘To study the effects of intracameral injection of triamcinolone acetonide on visualizing and removing the vitreous body from the anterior chamber in cataract surgery. Observational case series. Six eyes of six patients had the posterior capsule ruptured and the vitreous body prolapsed or incarcerated into the anterior chamber during cataract surgery. To visualize vitreous body, triamcinolone acetonide solution was injected into the anterior chamber and the vitreous body was resected. The intraoperative findings, results, and complications were evaluated. Vitreous body was well observed under surgical microscopy and was resected safely and completely. Minimum inflammation was observed postoperatively, and the patients obtained good visual acuity. No serious complications were found. One eye showed increased intraocular pressure (40 mm Hg), which was normalized by additional washing of the anterior chamber. Appropriate use of intracameral triamcinolone acetonide is beneficial to visualize and remove the vitreous body from the anterior chamber during cataract surgery, and sufficient washing of the anterior chamber is necessary to avoid complications.
文摘Objective: To study the effects of volcanic ash on the ocular symptoms of schoolchildren ages 6 to 15 residing near Mt. Sakurajima, an active volcano. Design: Retrospective, crosssectional study. Participants: A total of 10 380 children ages 6 to 15, 1175 in a high- exposure area and 9205 in a low- exposure area, were studied. Methods: High- and low- exposure areas for volcanic ash were selected. All subjects in both areas were examined annually each September in the decade from 1994 to 2003. Main Outcome Measures: The frequency of positive ocular symptoms in years with and without active volcanic eruptions was compared. The association of ocular symptoms with volcanic ash dispersal was assessed with the Mantel- Haenszel test or chi- square test. Results: Subjects in the high- exposure area showed ocular symptoms more often than those in the lowexposure area (P< 0.0001). Years of active volcanic eruptions (volcanic ash of 5000 g/m2/year or more) were closely related to years with a high frequency of ocular symptoms in subjects in the high- exposure area (P< 0.05) but related conversely in subjects in the low- exposure area (P< 0.01). Major ocular symptomswere redness, discharge, foreign body sensation, and itching, all treated effectively with eyedrops. Conclusions: Ocular symptoms in subjects were strongly influenced by volcanic eruptions in the Mt. Sakurajima area, but direct influence was limited to those living in areas very near the volcano (i.e.,4 km from the volcano’ s crater).
