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Runge

Origins of the Runge Near-Vision Test Card

The Runge Near-Vision Test Card, developed by Dr. Paul Runge during his ophthalmology residency at Cook County Hospital, Chicago, addresses the need for a rapid...
Vision Therapy

What is Vision Therapy?

Vision Therapy includes activities and exercises designed to improve or optimize eye-brain communication and the effectiveness of a person’s visual system. Vision therapy is most...
Contrast sensitivity

What is Contrast Sensitivity?

Contrast sensitivity is a person’s ability to see low-contrast images in the real world, such as a street sign on a dark roadway, dark curb...
Low Vision Tests and Products

Low Vision Tests and Products

Low vision is defined as vision loss that causes everyday activities to be difficult and for which vision cannot be corrected with medication, surgery, glasses...
Color Vision

Color Vision Explained

Color, as it applies to human vision, encompasses the different ranges of the visible light spectrum. Typical white light — that is, the light visible...
Stereopsis

What is Stereopsis?

Stereopsis is the ability of the visual system to properly process and combine the visual information coming to the brain from two different eyes. Because...
ETDRS

What is ETDRS?

ETDRS, or Early Treatment Diabetic Retinopathy Study, is a highly precise visual acuity test widely used in ophthalmology. It offers superior accuracy compared to older...
NMCEL

Programa piloto Good-Lite y NMCEL

En nuestro compromiso de abordar los desafíos de la demanda Martínez/Yazzi, nos hemos asociado con NMCEL para presentar GLD-Vision, una solución de evaluación de la...
Good-Lite

Celebrando más de 90 años de calidad y compromiso comunitario en Good-Lite

For more than 90 years, Good-Lite has stood as a symbol of unwavering quality. Yet, beyond our reputation for excellence, we take immense pride in...
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