Camila Navarro

Visual

April 30, 2021,

Blindness, Low vision

When reading a report of any kind you may find a graph, graphs are great ways of communicating big chunks of information in a summarized and easy to understand visual way, however, if I can’t see the graph the purpose
of the graph is lost, the solution would be the alternative text or a summary below that should come with an image like that but if the alternative text is “graph” then I wouldn’t be able to glean any information from it. Getting a proper alternative text can be hard because you have to communicate the same information that you would get from the graph in a concise way without over-explaining or oversimplifying.

A bad example for contrast and if the alternative text is: “a pie chart that explains the number of visually impaired in the USA”

Color blindness

Using the same graph example, any pie charts or any set of columns will have different colors identifying them, if these colors are too close to each other and they don’t have the proper contrast or texture difference, then as a color-blind person, I wouldn’t be able to tell the difference between them, a clear difference in contrast and the addition of texture to the graphs would fix this issue.

A good example for contrast difference and the alternative text is: “Number of people visually impairment people in the USA,  1 million are blind, 3 million have vision impairment after correction, and 8 million have vision impairment due to uncorrected refractive error”

Statistics from the CDCs Fast Facts.