République Française (liberté, égalité, fraternité) Inria
Blindness
Blindness is complete visual deficiency, whether congenital or acquired.
Total blindness refers to the inability to perceive light, while severe blindness is used for visual acuity below 1/50 (residual sight limited to being able to make out shapes).
People who are blind or who suffer from severe visual impairment use screen-reading software to access digital content.
Screen-reading software reproduces information, either in audio format using voice synthesis, or in the form of Braille using a refreshable Braille display.
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Inria
Link Main Navigation
Link Home
Link Colour blindness
Link Visuel impairment
Link blindness
Link hearing impairment
Version Française
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Heading level 1 Blindness
Blindness is complete visual deficiency, whether congenital or acquired.
Total blindness refers to the inability to perceive light, while severe blindness is used for visual acuity below 1/50 (residual sight limited to being able to make out shapes). People who are blind or who suffer from severe visual impairment use screen-reading software to access digital content. Screen-reading software reproduces information, either in audio format using voice synthesis, or in the form of Braille using a refreshable Braille display.
Listen to this page with a text-to-speech simulation: Play audio track
Heading level 2 Visual information
Heading level 3 What do you think of the content on this page?
Heading level 4 Non-accessible technological integration. Play audio track
Graphique public slash assets slash img slash plage-braille00125-min dot jpg
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[ Listen to text-to-speech ] Graphique public slash assets slash img slash plage-braille00125-min dot jpg
Poor technological integration will result in screen-reading software not being given all of the information. For example, screen-reading software will reproduce an incomprehensible version of the file name if an image has been poorly integrated.
Heading level 4 Accessible technological integration. Play audio track
Graphique A braille display connected to a laptop
Button expanded Audio transcription
[ Listen to text-to-speech ] Graphique A braille display connected to a laptop
In order for a web page to be fully accessible, technological integration must meet certain rules, including the following:
Alternative text must be provided for images that provide information
Pages must be structured hierarchically including a heading, lists, and so on
The wording for links and buttons must be clear
Heading level 2 Resources
Link Guide to alternative text for images
Link Guide to screen-reading software
Inria - Digital accessibility (logo)
Heading level 1 Contact
Link Disability mission. missionhandicap@inria.fr
Link Digital accessibility. contact-accessibilite-numerique@inria.fr
Heading level 1 Practical information
Link Disability mission Link General Guidelines on Improving Accessibility (RGAA) Link Ideance - Digital Accessibility Resources
Design and development by Ideance
Image credits : Pixabay, Freepik Company, Disability:IN
Visual information
What do you think of the content on this page?
Non-accessible technological integration
Audio transcription
[ Listen to text-to-speech ] Graphique public slash assets slash img slash plage-braille00125-min dot jpg
Poor technological integration will result in screen-reading software not being given all of the information.
For example, screen-reading software will reproduce an incomprehensible version of the file name if an image has been poorly integrated.
Accessible technological integration
Audio transcription
[ Listen to text-to-speech ] Graphique A braille display connected to a laptop
In order for a web page to be fully accessible, technological integration must meet certain rules, including the following:
- Alternative text must be provided for images that provide information
- Pages must be structured hierarchically including a heading, lists, and so on
- The wording for links and buttons must be clear