Wayfindr wants standardized guidelines for steering visually impaired
Consider going home alone on a train during rush hour at a station you are not all familiar with if you are not sighted.
Hi Tech & Innovation
Consider going home alone on a train during rush hour at a station you are not all familiar with if you are not sighted.
Machine learning & AI
Japanese eSports gamer Mashiro is blind and often relies on a companion to get around Tokyo—but he hopes that artificial intelligence, hailed as a promising tool for people with disabilities, can help him travel alone.
Jul 11, 2024
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Security
American Amara Majeed was accused of terrorism by the Sri Lankan police in 2019. Robert Williams was arrested outside his house in Detroit and detained in jail for 18 hours for allegedly stealing watches in 2020. Randal Reid ...
Jan 20, 2024
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Software
Screen readers, which convert digital text to audio, can make computers more accessible to many disabled users—including those who are blind, low vision or dyslexic. Yet slideshow software, such as Microsoft PowerPoint ...
Oct 30, 2023
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Robotics
Engineers from the Computer Science Department at Binghamton University, State University of New York have programmed a robot guide dog to assist the visually impaired. The robot responds to tugs on its leash.
Oct 30, 2023
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Software
The beauty of a nice infographic published alongside a news or magazine story is that it makes numeric data more accessible to the average reader. But for blind and visually impaired users, such graphics often have the opposite ...
Oct 2, 2023
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Consumer & Gadgets
Visually impaired iPhone users have two new free tools at their disposal, developed by a team now based at the University of Michigan. One can read the labels on control panels while the other identifies features in an image ...
Jun 13, 2023
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Software
A new tool could help make code reading, navigating and editing more accessible and efficient for blind and low-vision computer programmers, according to Penn State researchers.
Nov 2, 2022
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Automotive
In recent years, more vehicles include partially autonomous driving features, such as blind spot detectors, automatic braking and lane sensing, which are said to increase safety. However, a recent study by researchers from ...
Jul 28, 2022
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Machine learning & AI
It's no secret, artificial intelligence (AI) is changing the customer service game.
Feb 23, 2022
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Blindness is the condition of lacking visual perception due to physiological or neurological factors.
Various scales have been developed to describe the extent of vision loss and define blindness. Total blindness is the complete lack of form and visual light perception and is clinically recorded as NLP, an abbreviation for "no light perception." Blindness is frequently used to describe severe visual impairment with residual vision. Those described as having only light perception have no more sight than the ability to tell light from dark and the general direction of a light source.
In order to determine which people may need special assistance because of their visual disabilities, various governmental jurisdictions have formulated more complex definitions referred to as legal blindness. In North America and most of Europe, legal blindness is defined as visual acuity (vision) of 20/200 (6/60) or less in the better eye with best correction possible. This means that a legally blind individual would have to stand 20 feet (6.1 m) from an object to see it—with vision correction—with the same degree of clarity as a normally sighted person could from 200 feet (61 m). In many areas, people with average acuity who nonetheless have a visual field of less than 20 degrees (the norm being 180 degrees) are also classified as being legally blind. Approximately ten percent of those deemed legally blind, by any measure, have no vision. The rest have some vision, from light perception alone to relatively good acuity. Low vision is sometimes used to describe visual acuities from 20/70 to 20/200.
By the 10th Revision of the WHO International Statistical Classification of Diseases, Injuries and Causes of Death, low vision is defined as visual acuity of less than 6/18 (20/60), but equal to or better than 3/60 (20/400), or corresponding visual field loss to less than 20 degrees, in the better eye with best possible correction. Blindness is defined as visual acuity of less than 3/60 (20/400), or corresponding visual field loss to less than 10 degrees, in the better eye with best possible correction.
It should be noted that blind people with undamaged eyes may still register light non-visually for the purpose of circadian entrainment to the 24-hour light/dark cycle. Light signals for this purpose travel through the retinohypothalamic tract, so a damaged optic nerve beyond where the retinohypothalamic tract exits it is no hindrance.
This text uses material from Wikipedia, licensed under CC BY-SA