True Daylight Illuminator
Good-Lite-Vision Online Vision Screening Portal
ESV1200™ Illuminated Cabinet
+1 847-841-1145
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 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 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...
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...
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...
Good-Lite and NMCEL Pilot Program
In our commitment to addressing the Martinez/Yazzi lawsuit's challenges, we've partnered with NMCEL to introduce GLD-Vision, an affordable and automated online vision screening solution, with...
Celebrating Over 90 Years of Quality and Community Commitment at 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...