20
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Effect of mydriatic and cycloplegic drugs in glaucomatous and nonglaucomatous eyes using ultrasound biomicroscopy Translated title: Efeito de drogas midriáticas e cicloplégicas em olhos glaucomatosos e não glaucomatosos usando a biomicroscopia ultra-sônica

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Purpose: To study the anatomical relationships of the anterior segment of the eye, using ultrasound biomicroscopy in patients with chronic simple glaucoma and nonglaucomatous eyes, after mydriatic and cycloplegic instillation. Patients and Methods: Thirty eyes with chronic simple glaucoma and 30 nonglaucomatous eyes were studied. Anterior chamber depth, iris-lens contact and iris-zonule distance were measured, in both groups, using ultrasound biomicroscopy, in the three following conditions: without mydriatic and cycloplegic instillation, with 1% tropicamide alone and with 1% tropicamide plus 10% phenylephrine chlorhydrate. Results: Ultrasound biomicroscopy examinations of glaucomatous and nonglaucomatous eyes, without mydriatic and cycloplegic instillation, showed no statistically significant difference in the central anterior chamber depth, iris-lens contact and iris-zonule distance. The difference between examinations without mydriatic and cycloplegic instillation, with 1% tropicamide and with 1% tropicamide plus 10% phenylephrine chlorhydrate was statistically significant regarding the variables measured in both groups. Conclusions: No anatomical difference was observed between the anterior segment of glaucomatous and nonglaucomatous eyes after mydriatic and cycloplegic instillation. The results of this clinical investigation, using ultrasound biomicroscopy were innovative, allowing a dynamic and quantitative evaluation of the anatomical relationships between intraocular structures when submitted to mydriasis and cycloplegy, which up to now were only qualitative.

          Translated abstract

          Objetivo: Estudar por meio da biomicroscopia ultra-sônica, as relações anatômicas das estruturas do segmento anterior dos olhos de pacientes portadores de glaucoma crônico simples e não-glaucomatosos, após a instilação de midriá-ticos e cicloplégicos. Pacientes e métodos: Foram estudados 30 olhos com glaucoma crônico simples e 30 olhos não-glaucomatosos. A profundidade da câmara anterior, o toque íris-cristalino e a distância íris-zônula foram analisados pela biomicroscopia ultra-sônica sem a instilação de midriáticos e cicloplégicos, com tropicamida a 1% e com associação de tropicamida a 1% mais cloridrato de fenilefrina a 10%. Resultados: Os exames de biomicroscopia ultra-sônica dos olhos glaucomatosos e não-glaucomatosos, sem a insti-lação de cicloplégicos e midriáticos, não mostraram diferença significante da profundidade da câmara ante-rior, do toque íris-cristalino e da distância íris-zônula. A diferença entre os exames sem a instilação de midriáticos e cicloplégicos, com tropicamida a 1% e com associação de tropicamida a 1% mais cloridrato de fenilefrina a 10% foi estatisticamente significante nas variáveis estudadas em ambos os grupos. Conclusões: Não foram observadas diferenças anatômicas entre o segmento anterior dos olhos glaucomatosos e não-glaucomatosos após o uso de drogas midriáticas e ciclo-plégicas. Os resultados desta investigação clínica usando a biomicroscopia ultra-sônica foram inovadores, permitindo uma avaliação dinâmica e quantitativa das relações ana-tômicas entre as estruturas intra-oculares quando subme-tidas à midríase e cicloplegia, que até então eram somente qualitativas.

          Related collections

          Most cited references11

          • Record: found
          • Abstract: not found
          • Book: not found

          Estatísticas não-paramétricas para as ciências do comportamento

            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            Biomicroscopia ultra-sônica

              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              The influence of tropicamide on intraocular pressure.

              Elevation of intraocular pressure by many cycloplegic drugs has been reported to occur in eyes in which the filtration angle remained open during mydriasis. Tropicamide 1% is also capable of this phenomenon in patients with open angle glaucoma who are being medicated with pilocarpine. However, in normal eyes as well as those with untreated open angle glaucoma, this cycloplegic has a relatively small effect on intraocular pressure. It is postulated that this difference between the subject groups may be due to competitive inhibition of the miotic at the receptor site in those treated with pilocarpine. In 3 patients in whom the intraocular tension elevation was found to be quite marked, heavy pigments showers in the anterior chamber occurred which suggested an outflow obstructive phenomenon similar to that seen in "Pigmentary Glaucoma."
                Bookmark

                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                abo
                Arquivos Brasileiros de Oftalmologia
                Arq. Bras. Oftalmol.
                Conselho Brasileiro de Oftalmologia (São Paulo )
                1678-2925
                August 2000
                : 63
                : 4
                : 323-327
                Affiliations
                [1 ] Universidade Federal de São Paulo Brazil
                [2 ] Universidade Federal de São Paulo Brazil
                Article
                S0004-27492000000400014
                10.1590/S0004-27492000000400014
                a634fa5a-49a1-4024-937f-d86f1827213a

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0004-2749&lng=en
                Categories
                OPHTHALMOLOGY

                Ophthalmology & Optometry
                Anterior segment of the eye,Ultrasonography,Glaucoma,Open-angle,Mydriatics,Cycloplegics,Segmento anterior do olho,Ultra-sonografia,Ângulo aberto,Midriáticos,Cicloplégicos

                Comments

                Comment on this article