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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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Category 3 Blindness(also: ICD-10 H54 Category 3, WHO Category 3 Visual Impairment)
A classification of severe visual impairment under the World Health Organization's ICD-10 coding for disorders of the visual system (H54). Category 3 covers blindness in which the better eye has presenting visual acuity worse than 1/60 (20/1200 Snellen) but can still perceive…

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