3
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Modificaciones en la capa de fibras nerviosas poscirugía de catarata en glaucoma primario de ángulo abierto Translated title: Changes undergone by the nerve fiber layer after cataract surgery in patients with primary open angle glaucoma

      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

          RESUMEN Objetivo: Evaluar la modificación de la capa de fibras nerviosas después de la cirugía de catarata en pacientes con glaucoma primario de ángulo abierto. Métodos: Se realizó un estudio prexperimental en dos grupos de pacientes, 31 de ellos con glaucoma primario de ángulo abierto (49 ojos) y 29 pacientes sin glaucoma (50 ojos). Se analizó el comportamiento del espesor de la capa de fibras nerviosas retinianas antes y después de la cirugía de catarata (facoemulsificación). Fue evaluado el comportamiento pre y posoperatorio de la agudeza visual, así como la presión intraocular. Resultados: La edad promedio fue 71,8 ± 8,0 años en el grupo sin glaucoma y 67,8 ± 8,9 años en el grupo con glaucoma primario de ángulo abierto. La mediana de la agudeza visual sin corrección pasó de 0,20 a 0,90 en el grupo sin glaucoma y 0,30 a 0,80 en el grupo con glaucoma primario de ángulo abierto, donde resultó la p< 0,05 en ambos casos. La mediana de la presión intraocular cayó 1 mmHg en ambos grupos. En los cuadrantes superior e inferior hubo un incremento del espesor de la capa de fibras después de la operación en ambos grupos, pero solo se observó en cuadrantes nasal y temporal en el grupo con glaucoma. Conclusiones: Después de la cirugía de catarata se produce un incremento del espesor de la capa de fibras. La opacidad impide la transmisión de la señal a la retina.

          Translated abstract

          ABSTRACT Objective: Evaluate the changes undergone by the nerve fiber layer after cataract surgery in patients with primary open angle glaucoma. Methods: A pre-experimental study was conducted of two groups of patients, 31 with primary open angle glaucoma (49 eyes) and 29 without glaucoma (50 eyes). The behavior of retinal nerve fiber layer thickness was analyzed before and after cataract surgery (phacoemulsification). Visual acuity and intraocular pressure were evaluated during the pre- and postoperative periods. Results: Mean age was 71.8 ± 8.0 years in the group without glaucoma and 67.8 ± 8.9 years in the group with primary open angle glaucoma. Median visual acuity without correction rose from 0.20 to 0.90 in the group without glaucoma, and from 0.30 to 0.80 in the group with primary open angle glaucoma, with p< 0.05 in both. Median intraocular pressure fell 1 mmHg in both groups. An increase in fiber layer thickness was observed after surgery in the upper and lower quadrants of both groups, but only in the nasal and temporal quadrants of the group with glaucoma. Conclusions: Fiber layer thickness increased after cataract surgery. Opacity hindered signal transmission to the retina.

          Related collections

          Most cited references21

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

          Prevalence of age-related lens opacities in a population. The Beaver Dam Eye Study.

          Age-related lens opacities are common and are a frequent cause of loss of vision. The Beaver Dam Eye Study was designed to estimate the prevalence and severity of lens opacities in a rural community in the United States. Adults between the ages of 43 and 84 years, identified by private census, were examined and participated in the study (n = 4926). Photographs were taken of the lenses and were graded in masked fashion according to a standardized protocol. For nuclear sclerosis, more severe levels occurred more commonly in older age groups and in women. Overall, 17.3% had nuclear sclerosis more severe than level 3 in a 5-step scale of severity. Cortical opacities increased with increasing age and were more common in women. They were found in 16.3% of the population. Posterior subcapsular opacities occur in 6.0% of the population. There was a significant trend of greater prevalence at older ages, but no sex effect. The frequency of early cataract increased in both sexes through the age group 65 to 74 years, but declined in those 75 years of age and older. The frequency of late cataract increased consistently with age. Women were more severely affected than men. This study confirms that lens opacities are common in adults in the United States. These data are important for providing for social and health care needs. It is important to determine causes of cataracts in order to develop preventive programs.
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Long-term intraocular pressure control after clear corneal phacoemulsification in glaucoma patients.

            To evaluate long-term IOP control after sutureless clear corneal phacoemulsification in eyes with preoperatively controlled glaucoma. Institutional study. The charts of 345 patients who had uneventful sutureless clear corneal phacoemulsification with acrylic foldable lens (IOL) implantation were retrospectively reviewed. Included were 58 patients with medically controlled open-angle glaucoma and 287 normal controls. Follow-up was 1 to 2 years. Outcome measures were postoperative IOP and number of glaucoma medications. Postoperatively, there was an insignificant decrease in IOP in the glaucoma group; the mean decrease was 1.5 mm Hg +/- 4.4 (SD) at 12 months and 1.9 +/- 4.9 mm Hg at 24 months. The mean number of medications decreased significantly at 12 months (0.53 +/- 0.86) and at 24 months (0.38 +/- 0.9) (P=.04). The control group also had a significant decrease in IOP, with a mean decrease of 0.72 +/- 3.7 mm Hg at 12 months (P=.01) and 1.33 +/- 3.2 mm Hg at 24 months (P<.0001). The decrease in IOP was more pronounced in eyes with a higher preoperative IOP in both the glaucoma and control groups. These findings suggest that sutureless clear corneal phacoemulsification with foldable acrylic IOL implantation is a relatively simple and efficient surgical option in patients with cataract and well-controlled glaucoma. The approach combines long-term IOP control with fewer medications and leads to rapid visual rehabilitation.
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Anterior chamber depth, iridocorneal angle width, and intraocular pressure changes after phacoemulsification: narrow vs open iridocorneal angles.

              To determine the association of changes in anterior chamber angle and anterior chamber depth (ACD) with intraocular pressure (IOP) reduction after uncomplicated phacoemulsification.
                Bookmark

                Author and article information

                Journal
                oft
                Revista Cubana de Oftalmología
                Rev Cubana Oftalmol
                Editorial Ciencias Médicas (Ciudad de la Habana, , Cuba )
                0864-2176
                1561-3070
                March 2019
                : 32
                : 1
                : e687
                Affiliations
                [1] La Habana orgnameInstituto Cubano de Oftalmología "Ramón Pando Ferrer" Cuba
                Article
                S0864-21762019000100007 S0864-2176(19)03200100007
                a9d247df-413d-46b0-b7e1-b3b0062d371d

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 09 October 2018
                : 28 September 2018
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 23, Pages: 0
                Product

                SciELO Cuba

                Categories
                INVESTIGACIONES

                tomografía de coherencia óptica,glaucoma primario de ángulo abierto,Capa de fibras nerviosas de la retina,primary open angle glaucoma,Retinal nerve fiber layer,optical coherence tomography

                Comments

                Comment on this article