Results 51 to 60 of about 5,738 (202)

Changes in Retinal and Choroidal Vascular Blood Flow after Oral Sildenafil: An Optical Coherence Tomography Angiography Study

open access: yesJournal of Ophthalmology, 2017
Purpose. To describe changes in the retina and choroidal flow by optical coherence tomography angiography (OCT-A) after a single dose of oral sildenafil. Method. A case-control study.
David Berrones   +3 more
doaj   +1 more source

Astigmatismo inducido en pacientes operados de facoemulsificación con microincisión + lente intraocular + trabeculectomía

open access: yesRevista Mexicana de Oftalmología, 2016
Objetivo: Determinar el astigmatismo corneal que se induce en pacientes postoperados de facoemulsificación con implante de lente intraocular y trabeculectomía.
Carolina Prado-Larrea   +5 more
doaj   +1 more source

Soberanías oscuras en América Latina

open access: yes452ºF, 2022
Este artículo trata sobre un grupo de escritores y artistas latinoamericanos cuyos trabajos han irrumpido en la escena cultural de América Latina a lo largo de las últimas dos décadas para desconocer la transparencia óptica con la que se ha definido la ...
Javier Guerrero
doaj   +1 more source

From Neurotransmission to Retinal Pathophysiology: Unraveling the Role of GABA Receptors in Retinal Disease Progression

open access: yesJournal of Neurochemistry, Volume 169, Issue 8, August 2025.
GABA receptors, widely expressed in the retina, play a key role in lateral inhibition and synaptic regulation. Emerging evidence links their dysregulation to retinal diseases such as diabetic retinopathy, retinitis pigmentosa, glaucoma, and age‐related macular degeneration.
Alan E. Medina Arellano   +5 more
wiley   +1 more source

TEK gene‐related primary congenital glaucoma: Phenotypic features and mutational spectrum in a Mexican cohort of 10 unrelated families

open access: yesAmerican Journal of Medical Genetics Part A, Volume 194, Issue 10, October 2024.
Abstract Primary congenital glaucoma (PCG) is one of the leading causes of visual damage and blindness, severely affecting the quality of life of affected children. It is characterized by cupping of the optic disc and loss of ganglion cells due to elevated intraocular pressure. While most PCG patients exhibit epiphora, photophobia, and buphthalmos with
Oscar Francisco Chacon‐Camacho   +13 more
wiley   +1 more source

Expert assessment of illegal collecting impacts on Venus flytraps and priorities for research on illegal trade

open access: yesConservation Biology, Volume 38, Issue 5, October 2024.
Abstract Illegal collecting of wild Venus flytraps (Dionaea muscipula) for the horticultural trade represents a persistent threat to populations of the species across their endemic range in the coastal plain of North and South Carolina (United States). Although wild collecting of Venus flytraps is not a novel threat, there has been very little research
Jared D. Margulies   +10 more
wiley   +1 more source

Colour perception develops throughout childhood with increased risk of deficiencies in children born prematurely

open access: yesActa Paediatrica, Volume 113, Issue 2, Page 259-266, February 2024.
Abstract Aim To quantify the impact of prematurity on chromatic discrimination throughout childhood, from 2 to 15 years of age. Methods We recruited two cohorts of children, as part of the TrackAI Project, an international project with seven different study sites: a control group of full‐term children with normal visual development and a group of ...
Victoria Pueyo   +33 more
wiley   +1 more source

La ceguera

open access: yes, 2010
Emiro trabajaba en la empresa Carvajal y Compañía. Se desempeñaba en el cargo de Kardex, manejando una serie de repuestos; cada uno de éstos tenía una referencia y cada referencia se componía de diez a doce letras o números para definir si era tornillo, tuerca, resorte, cierre o alguna otra cosa. Emiro memorizaba todas esas referencias, utilizadas para
openaire   +2 more sources

Conservative management of penetrating ocular trauma caused by a nail gun

open access: yesAmerican Journal of Ophthalmology Case Reports, 2018
Purpose: To report the conservative management of a penetrating ocular trauma caused by a nail gun with a six-month follow up. Observations: A 21 year-old healthy female suffered an ocular penetrating trauma with a nail gun. She presented with a metallic
Irving Enrique Carral-Santander   +5 more
doaj   +1 more source

Secondary hyperhomocysteinemia-related occlusive retinal vasculopathy: A case report

open access: yesAmerican Journal of Ophthalmology Case Reports, 2019
Purpose: To report a case of occlusive retinal vasculopathy, secondary to hyperhomocysteinemia. Observations: A 43-year-old male was examined at the retina outpatient clinic due to complaints of bilateral decrease in visual acuity.
Irving Enrique Carral-Santander   +7 more
doaj   +1 more source

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