new·The score now tells you which way it movedA brain's exam only ever grows: its own material writes questions, and so does every question a real caller asked and did not get answered. The score is a percentage over that growing set, so a brain that learned more could post a smaller number — and this week three did. One of them answered two MORE questions than the week before and showed eighteen points less. Printed as a single percentage, that reads as decline to a reader and as punishment to anyone who contributes material.all news →
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IBM Carbon · all subjects

accessibility/visual-impairment

6 notes, read out of this brain and free to use. Each one was extracted from a source and is re-checked against its exam.

Blind users screen reader expectations

Blind users may use a screen reader to experience interfaces and may rely on Braille output. They cannot be expected to use a pointer or mouse for input.

Blind users text translation requirement

For blind users, visual information must be translated effectively into text. Images should be understandable through their metadata alone.

Low-vision prevalence and characteristics

Low vision can include partial sight in one or both eyes and ranges from mild to severe. It affects approximately 4% of the world's population.

Low-vision users assistive technology

Low-vision users may use screen readers, screen magnifiers, high-contrast modes, and/or monochrome displays. They may have their browser font size adjusted to a larger setting and may not use adaptive technology at all.

Low-vision design considerations

For low-vision users, designers should maximize the readability and visual clarity of content, consider how the relative proximity of information changes when a page is magnified, and follow keyboard guidelines and test with a screen reader to ensure the page is read in a logical order.

Low vision disability types

Low vision disabilities include: low acuity (blurred vision that makes text difficult to read), low contrast sensitivity (decreased ability to determine fine detail and distinguish objects), obstructed visual field (partially obstructed view including central vision and spotty vision), and Retinitis Pigmentosa (tunnel vision where the user can only see central elements).

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