ABSTRACT
Cataract is a main blinding eye disease worldwide,follwed by glaucoma.Expension of lens volume occurs in early stage of age-related cataractous eyes,which is a risk factor of Primary angle-closure glaucoma,and phacoemulsification is a feasible approach to remove it.However,how to select the timing of operation and determine the prognosis is the major challenge for ophthalmologists.In order to evaluate the influence of phacoemulsification on ocular anterior segment configuration,we collected the information of 17 articles that quantitatively analyzed the ocular anterior segment parameter changes after phacoemulsification,determined by anterior segment OCT (AS-OCT).Total 866 eyes that received phacoemulsification for age-related cataract were included in the following-up duration for 6 months,and the results showed that the mean anterior chamber depth (ACD),anterior chamber volume (ACV),anterior chamber angle (ACA),angle opening distance 500 μm anterior to the scleral spur (AODS00),angle opening distance 750 μm anterior to the scleral spur (AOD750),trabecular-iris space area 500 μm from scleral spur (TISA500),trabecular-iris space area 750 μm from scleral spur(TISA750),and angle recess area 750 μm anterior to the scleral spur (ARA 750) were increased,but the mean anterior chamber width (ACW) and iris thickness measured at 750 μm (IT750) were not significantly changed,while the postoperative iris curvature (I-Curv),iris cross-sectional area and convex hull of iris segments were decreased after phacoemulsification.In addition,the postoperative ACD,TISA500 showed positive correlations to preoperative lens thickness,and the ACD and AOD500 in 3 months after operation were positively correlated to the preoperative lens value (LV).This systematic review concluded that phacoemulsification could be used for the treatment of glaucoma by relieving pupillary block,reducing the iris oppression,deepening the anterior chamber and opening anterior chamber angle.
ABSTRACT
Se realizó un estudio observacional, descriptivo y transversal para conocer las características clínico-epidemiológicas en pacientes operados de catarata senil, en Santa Rita, Zulia, de julio a noviembre de 2007. El universo estuvo conformado por 203 pacientes (ojos), la selección de la muestra se realizó de forma aleatoria simple, y se estimaron 56 pacientes operados (ojos). Los datos se obtuvieron a través de la observación del paciente y examen oftalmológico y de las historias clínicas individuales. Se confeccionó una planilla para la recogida de la información. Se utilizaron los métodos de la estadística descriptiva y resumieron las variables en frecuencias absolutas y relativas porcentuales. Se encontró que había un predominio del grupo de edad entre 60 y 69 años y el sexo femenino. El 53,6 % de los pacientes son diabéticos, y el glaucoma ocupaba el segundo lugar con 39.3 %. La agudeza visual preoperatoria estaba fundamentalmente en el rango de 0,3-0,6 (58.9 %). La catarata afectó a ambos ojos por igual. Las complicaciones en general fueron infrecuentes (< 20 %), con variaciones en dependencia del tiempo: entre las inmediatas fueron el edema corneal y la hipertensión ocular secundaria; en las mediatas fueron la subluxación del LIO y a la queratopatía bullosa, mientras las tardías estuvieron representadas por la opacidad de la cápsula posterior. La mayoría de los pacientes evaluó de buena tanto la satisfacción con el servicio quirúrgico y con el seguimiento en la comunidad. Se recomienda generalizar estos resultados para contribuir a elevar la calidad de vida y una mayor satisfacción de la población venezolana afectada por la Catarata Senil.
An observational, descriptive and cross-sectional study was carried out to describe the clinical-epidemiological characteristics of patients surgically treated by senile cataracts in Santa Rita, Zulia. Venezuela. July to November 2007. The universe was comprised of 203 patients (eyes), and the simple random sample was estimated in 56 patients (eyes). Data were obtained from the observation of the patient, ophthalmologic examination and the individual clinical records. A form was printed to collect information. Descriptive statistical methods were used to represent variables in absolute and relative frequencies. The age bracket 60-69 and females prevailed; 53, 6 % of patients were diabetic, glaucoma occupied the 2nd place with 39.3%. Pre-operatory visual acuity was mainly in the rank of 0, 3-0,6 (58,9 %). Cataract affected both eyes in the same proportions. Post-operative complications were infrequent (< 20 %), varying on time of presentations, among the immediate ones were: the corneal edema and the secondary ocular hypertension; among the mediate were subluxation of IOL and bullosa keratopathy, whereas the late complication, posterior capsule opacity was the most observed. Most of the patients evaluated either the satisfaction with the surgical service, or the follow up in the community as good. These results should be generalized to contribute to the increase of the quality of life and a greater satisfaction of the Venezuelan population affected by Senile Cataracts.