You can activate a variety of accessibility options in Mac OS High Sierra version 10.13 that make it easier to see, hear, and use your computer
Turn on accessibility features such as:
First, click on the System Preferences icon on the Dock.
Second, click on the Accessibility icon under System Preferences.
Lastly, turn on accessibility features such as VoiceOver (screen reader), Zoom (magnifier) and Cursor Size.
TIP: For ease of convenience in activating or deactiving accessibility features, check the option to “Show Accessibility status in the menu bar” .
VoiceOver is the advanced screen-reading technology integrated into the Mac OS.
There are two ways to activate or deactivate VoiceOver:
Shortcut key to activate or deactivate VoiceOver = press Command+F5
Useful shortcut keys on using VoiceOver to read text (VO = Control and Option keys):
1. To zoom in (full screen): press Command+Option+Equal
2. To zoom out (full screen): press Command+Option+Minus
3. To zoom in (only the webpage): press Command+Equal
4. To zoom out (only the webpage): press Command+Minus
To change your cursor size, go to your Dock, click on the System Preferences icon > click on the Accessibility icon > select the Display menu > change the Cursor Size
You can change the size of your menu bar text by changing the display settings on your screen. To change your display settings, go to your Dock, then click on the System Preferences icon > click on the Accessibility icon > select the Display menu > click on "Open Display Preferences".
Change to a larger text to enlarge your menu bar text.
To show the Display icon on the Menu bar, ensure that you check the option to “Show mirrowing options in the menu bar when available”.
You can change the size of icons, arrange them in a grid, change their text size and set other preferences for items on your desktop by changing the view options on your desktop.
To change your desktop view options, click the Desktop, and then choose View > Show View Options from the menu bar. Alternatively, press Command+J key.
Links to useful guides on VoiceOver:
This Apple VoiceOver guide explains how to use VoiceOver with appendices on VoiceOver commands and gestures, and VoiceOver Utility Options.
For new users, please check out the VoiceOver Keyboard Shortcuts for Mac OS
Here are instructions on Working with Text and VoiceOver on a Mac.