Science

Computer scientist creates coronavirus database for the visually impaired


Software developer creates a simplified website of coronavirus statistics to make them accessible for the blind or visually impaired

  • A Boston-based software developer wanted to make COVID-19 stats accessible
  • He created a simplified website that would be easily readable by electronic braille readers and other common aid devices used by the visually impaired
  • Called CVStats.net, the site publishes global case numbers, as well as country and US state numbers 

Tyler Littlefield, a software developer based in Boston, has created a database of COVID-19 statistics meant to be accessible to the visually impaired.

Called CVStats.net, the site organizes up-to-date COVID-19 data in simple charts specifically designed to be legible to a range of aid devices the visually impaired use to access websites.

For Littlefield, and many other people with visual impairments, trying to stay updated during the COVID-19 pandemic has been a challenge because many of the commonly shared charts and graphs are inaccessible, including those from the CDC and Department of Public Health.

A Boston-based software developer has created a new COVID-19 tracking site intended to be accessible to the blind and visually impaired

A Boston-based software developer has created a new COVID-19 tracking site intended to be accessible to the blind and visually impaired

‘For many people with various types of disabilities, graphics and the information conveyed in them is hard to read and understand,’ Littlefield told Vice.

‘I believe in the idea of open data, data that everyone can access to help make informed decisions. Finding this lack, I created CVStats to present the data to users in a straightforward way, free of ads, click-through news articles and graphics.’

One of the main obstacles in making COVID-19 information more accessible are the conventions of modern webdesign.

With a profusion of autoplay videos, pop-up windows, and animated inserts, many modern websites make it difficult for braile embossers to scan a webpage and convert its content into a braille printout.

‘Clutter is the enemy of tactical legibility,’ Naomi Rosenberg of the accessibility firm Lighthouse told Vice.

Likewise, some forms of data visualization don’t translate well to braille or audio tools, especially the types of graphs that show the rapid ascent of global COVID-19 cases.

‘For each of these, a blind reader is at the mercy of the designer, writer, or educator to produce quality graphics, concise image descriptions, or properly-formatted tables,” Rosenberg said.

One possible alternative to visual graphs are ‘sonification curves,’ which translate graph lines into rising and falling sounds to try and convey a similar sense of magnitude, something that an aid device won’t be able to do without simple and accessible data. 

Called CVStats.net, the site was designed to be simple and accessible to electronic braille readers and other aid devices many visually impaired people use to help access the web

Called CVStats.net, the site was designed to be simple and accessible to electronic braille readers and other aid devices many visually impaired people use to help access the web

Modern website design has grown so complicated and visually intensive that much of the information about COVID-19 that's published every day is inaccessible to the visually impaired because their aid devices aren't able to parse the busy and cluttered web pages

Modern website design has grown so complicated and visually intensive that much of the information about COVID-19 that’s published every day is inaccessible to the visually impaired because their aid devices aren’t able to parse the busy and cluttered web pages

Another challenge, according to Sassy Outwater-Wright, Executive Director of the Massachusetts Association for the Blind and Visually Impaired, is that many healthcare facilities don’t post clear or accessible information about their policies.

For instance, some drive through testing sites only allow private vehicles, not taxis or other commercial vehicles, which would be important for a visually impaired person who can’t drive themselves to know before planning a visit.

‘The moment that I heard everything was going drive-thru I kind of had a cringe moment because, other than in the hospital, there’s really no other way to access that testing, and for many in our community, including myself, who are immunocompromised, that puts us at a much higher risk,’ Outwater-Wright said.

‘We don’t get the benefit of staying in our car, we don’t get the benefit of trying to continue to social distance. We have to go in.’

WHAT IS BRAILLE? 

Braille is a system of raised dots that can be read with the fingers by people who are blind or who have low vision.  

Braille is not a language but a code by which many languages such as English, Spanish, Arabic, Chinese, and dozens of others may be written and read.

Braille is used by thousands of people all over the world in their native languages.

Braille symbols are formed within braille cells. 

A full braille cell consists of six raised dots arranged in two parallel rows each having three dots. 

The dot positions are identified by numbers from one through six and sixty-four combinations are possible using one or more of these six dots.

A single cell can be used to represent an alphabet letter, number, punctuation mark, or even a whole word

 



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