[The TetraLogical logo whooshes into view on a white background. The logo flashes and stops with a sonar-like 'ping'. It then magnifies and fades out.]

[A dark purple background appears with the TetraLogical logo faintly overlaid]

Browsing with screen magnification.

Screen magnification works by zooming all or parts of the screen as if you are looking through a magnifying glass.

[The TetraLogical homepage appears. In the centre of the screen is the Magnifier application window displaying various options. A mouse hovers over the plus button. As it is selected, the screen gets larger and larger]

Depending on the software, you can enlarge content on screen to 60 times, or 6000% the original size, and more.

Screen magnification software is used with a mouse, touchpad, keyboard or other pointer device. It also comes with keyboard commands to help you quickly execute common actions like zooming in and out.

[A zoomed-in TetraLogical homepage appears. As the mouse pointer moves around, the screen tracks it so different elements of the page are displayed]

A really useful feature of screen magnification is focus tracking. As you move the pointer or cursor, the screen magnifier moves with it. Taking Magnifier on Windows as an example, note how the zoomed-in view scrolls to follow the mouse pointer. When navigating using the keyboard, note how the view scrolls to always maintain the currently focused element in view.

While magnifying content is helpful, people often use additional enhancements to make content easier to see.

[The screen displays the Magnifier settings. The user checks the "Invert colours" box]

For example, colour inversion, turning text from black-on-white to white-on-black, can reduce screen glare and is helpful for older people or people with certain sight conditions such as macular degeneration.

[The TetraLogical homepage is displayed again. This time, the ZoomText Magnifier/Reader settings are displayed]

Mouse and text cursors can often be modified to make them easier to locate on screen.

[The user navigates to the "Pointer" drop-down. "Normal" is currently selected. Next to the option "Scheme" a range of different options are available. The user selects "Large yellow" which increases the size of the pointer and changes the colour]

This could be by enlarging them, circling them, or changing the colour.

[The user selects the "Yellow with crosshairs" option. The cursor changes to a hand icon. Large red grid lines are displayed across the entire screen. The horizontal and vertical lines meet at the point where the cursor sits]

Some people may prefer to use crosshairs rather than a mouse cursor, especially if they can be customised.

[The screen changes back to the Magnifier settings. It shows the option "Change Magnifier view" and offers a dropdown for the user to choose a view where full screen is currently selected.

You can use different magnification modes for different tasks.

[The user selects "Lens" which creates a highly magnified rectangle that focuses on the element the cursor hovers over]

You can magnify the whole screen, or use a magnifying lens that can be moved around the otherwise un-magnified screen.

[The TetraLogical homepage reappears with the ZoomText Magnifier/Reader settings displayed]

Many screen magnification solutions also include speech output or integrated screen reading capabilities. Taking ZoomText as an example, you can enable "Mouse Echo" which will read out any text underneath the mouse pointer.

[The user selects the "Mouse" drop-down and changes the settings from "no echo" to "instant"]

[ZoomText] Mouse, No Echo checked, Instant, Mouse Echo set to Instant mode, Hello, we're TetraLogical, We're a company with inclusion at its heart.

Matching functionality is also available if you're navigating with a keyboard instead.

[The TetraLogical homepage is displayed again, zoomed in to 300%]

When opening a web page, people who use screen magnification will generally move the viewport to the top left of the page (for content in a language that is written left-to-right).

[The user slowly moves their mouse across the screen displaying the menu bar from left to right]

Typically this is the website logo in the header of the web page. People expect to find common features such as the main navigation, search, and links to login and help by scrolling horizontally.

[The page changes to the "Contact us" heading as the user navigates down to the page footer]

People who use screen magnification often rely on their mouse (or finger on a touchpad) to pan their screen and at times need different levels of magnification.

[The user zooms in further, then uses the cursor to navigate to the social icons for Twitter, YouTube and LinkedIn in the footer]

For example, if links and buttons are small, magnification can be increased to enable people to select them accurately.

[The cursor moves around in a blank space with no content in sight]

When using screen magnification, it can be easy to become disorientated in long web pages or pages with a lot of content or large areas of white space.

[The user zooms out, locates the content they need, then zooms back in]

A common strategy is to zoom out to find your location quickly and then zoom back in again to explore the content in-depth.

These are some of the high-level details about screen magnification, and common strategies that people browsing with screen magnification use.

[The screen fades to white and the TetraLogical logo appears again]

To find out more about accessibility visit tetralogical.com.