Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Blue Cone Monochromatism(also: BCM, S-cone Monochromacy)
- A rare inherited vision condition in which only the blue (short-wavelength) cones function, resulting in severely reduced color vision, reduced visual acuity, photophobia, and nystagmus. Affected individuals see the world in shades of blue and yellow and typically benefit from…
- Blurred Vision Simulation(also: Vision Simulation, Low Vision Simulation)
- A technique used in accessibility evaluation where evaluators simulate the visual experience of people with reduced visual acuity by artificially blurring their view of a website or application. Methods include using low vision simulation glasses (commercially available from…
- Brightness Contrast(also: Luminance Contrast, Perceived Brightness Difference)
- The difference in perceived brightness between two colors, typically between text and its background. Brightness contrast is a key factor in readability, especially for people with low vision, color vision deficiencies, or those viewing content in challenging lighting…
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