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Glossary

Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.

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Corneal Reflection(also: Pupil-Center Corneal Reflection, PCCR)
An eye tracking technique that works by shining a near-infrared light at the eye and measuring the relationship between the reflection off the cornea (the bright spot called the glint) and the center of the pupil. As the eye rotates to look at different screen positions, the…

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