Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Pupil Diameter(also: Pupil Size, Aperture Size)
- The width of the opening in the iris through which light enters the eye, typically ranging from about 2mm in bright light to 8mm in darkness. Pupil diameter significantly affects visual quality because it determines how much of the eye's optical aberrations influence the image…
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