Web Accessibility

You are here

Minor visual impairment

This is when you have a visual impairment, but you still have some vision. In most cases, you will have difficulties with contrasts and text sizes. Having problems with vision can also be associated with advancing age.

You may come across the following barriers, among others, if the web pages are not accessible:

  • Insufficient contrast between the page elements and their background, which can cause difficulties with reading the content.
  • Small text size and when using the zoom on the browser the result is overlapping or overspilling text, making reading difficult.
  • The fact that there are page elements that cannot be configured according to your needs (for example, there are text images or there is no clear separation between the page content and its format or design).

People with colour blindness (for example, daltonism) can find that it is impossible to understand the information conveyed solely through colour, such as bar charts with bars of different tones.

To be able to use web pages more comfortably, you can get a larger screen monitor or use a screen amplifier.

Nonetheless, the following table shows you how to alter the size of the content on the most commonly used browsers:

Browser Keyboard shortcuts
Mozilla Firefox

Enlarge: Ctrl and +
Reduce: Ctrl and -
Refresh: Ctrl and 0
Full screen: F11

Edge

Enlarge: Ctrl and +
Reduce: Ctrl and -
Refresh: Ctrl and 0
Full screen: F11

Google Chrome

Enlarge: Ctrl and +
Reduce: Ctrl and -
Refresh: Ctrl and 0
Full screen: F11

Safari

Enlarge: ⌘ and +
Reduce: ⌘ and -
Refresh: you must clear the search history.
Full screen: ⌘ + Ctrl + F

You can also follow these steps depending on the browser to alter the size of the browser text:

Browser Action to be taken
Mozilla Firefox

Icon with three short lines > General > Font type > size

Google Chrome

Icon with three bullet points > Appearance > Font size

You can set your computer to high contrast mode:

  • In Windows, by combining the Shift or Caps + Alt + print screen keys or by going to Control Panel and then Activity centre, where you can activate the high-contrast settings.
  • In MacOS, go to Accessibility, then to the "Screen" section, and activate "Invert colours".
  • In Linux Gnome, go to Systems, then to Preferences and then to Appearance, and select one of the high contrast themes.