Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Hand-Over-Hand Technique(also: Hand-Over-Hand Guidance, Hand-Over-Hand Training)
- A training and communication method commonly used with individuals who are blind or have visual impairments, where a trainer places their hands over the learner's hands to physically guide them through the motions of a task. This technique allows the learner to feel the correct…
- Hand-Under-Hand Technique(also: Hand-Under-Hand Guidance, Hand-Under-Hand Training)
- A training and communication method used with individuals who are blind or have visual impairments, where the learner places their hands on top of the trainer's hands to feel the movements being demonstrated. Unlike hand-over-hand guidance where the trainer controls the…
- Hyperopia(also: Farsightedness, Long-Sightedness, Hypermetropia)
- A refractive error in which the eye focuses light behind the retina rather than on it, causing near objects to appear blurred while distant objects may remain relatively clear. Hyperopia occurs when the eyeball is too short or the cornea is insufficiently curved. It is…
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