Video Experimental Relacionado

Updated: Feb 20, 2026

Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential

Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential

Published on: May 25, 2020

Factores asociados con el glaucoma primario de ángulo abierto en una población nepalí: Estudio Ocular de Jiri

Archana Sharma, Manish Poudel, Pradeep Banjara

Nepalese journal of ophthalmology : a biannual peer-reviewed academic journal of the Nepal Ophthalmic Society : NEPJOPH

|February 19, 2026

Resumen

El glaucoma primario de ángulo abierto (GPAA) es una causa principal de ceguera. La detección temprana a través de estrategias de cribado es crucial para prevenir la pérdida de visión en poblaciones de riesgo.

Área de la Ciencia:

Oftalmología
Salud Pública
Genética

Sus antecedentes:

El glaucoma es la segunda causa de ceguera a nivel mundial.
El glaucoma primario de ángulo abierto (GPAA) es un contribuyente significativo al deterioro visual.

Objetivo del estudio:

Investigar los factores oculares y sistémicos asociados con el desarrollo de GPAA.
Informar sobre las estrategias de detección y cribado tempranas para el GPAA.

Principales métodos:

Estudio poblacional analítico transversal, oculo-genético.
Se incluyeron 2042 participantes de 18 años o más, con 37 diagnosticados de GPAA.
Se realizaron exámenes oftalmológicos completos y evaluaciones sistémicas.

Principales resultados:

La prevalencia de GPAA fue del 2,53% en personas de 30 años o más.
Se observó un mayor riesgo de GPAA en personas de 40 años o más.
El GPAA se asoció significativamente con una presión intraocular elevada, un mayor cociente de excavación-disco vertical y cambios característicos en la capa de fibras nerviosas de la retina y las pruebas de campo visual.

Conclusiones:

La identificación de los factores asociados con el GPAA es clave para el desarrollo de programas de cribado eficaces.
La detección e intervención tempranas son vitales para prevenir la ceguera causada por el GPAA.

Palabras clave:

glaucoma primario de ángulo abierto nepal factores de riesgo detección temprana ceguera estudio ocular

Más Videos Relacionados

Laser Capture Microdissection of Highly Pure Trabecular Meshwork from Mouse Eyes for Gene Expression Analysis

Laser Capture Microdissection of Highly Pure Trabecular Meshwork from Mouse Eyes for Gene Expression Analysis

Published on: June 3, 2018

Glaucoma-inducing Procedure in an In Vivo Rat Model and Whole-mount Retina Preparation

Glaucoma-inducing Procedure in an In Vivo Rat Model and Whole-mount Retina Preparation

Published on: March 12, 2016

Videos de Conceptos Relacionados

Glaucoma: Overview

Glaucoma: Overview

Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...

Open Angle Glaucoma: Treatment

Open Angle Glaucoma: Treatment

In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...

Angle Closure Glaucoma: Treatment

Angle Closure Glaucoma: Treatment

Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...

Hypertension III: Clinical Manifestations and Diagnostic Studies

Hypertension III: Clinical Manifestations and Diagnostic Studies

Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...

Bias in Epidemiological Studies

Bias in Epidemiological Studies

Biases can arise at various stages of research, from study design and data collection to analysis and interpretation. Recognizing and addressing these biases is essential to ensure the validity and reliability of epidemiological findings.Broadly speaking, biases in epidemiology fall into three main categories: selection bias, information bias, and confounding. A more detailed description of possible biases is:

Photoreceptors and Visual Pathways

Photoreceptors and Visual Pathways

At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...