Toggle Zoom Option+Command+8
Zoom in option+Command+equals
Zoom Out Option+Command+minus
Increase magnification of VoiceOver cursor control+Option+shift+right bracket
Decrease magnification of VoiceOver cursor control+Option+shift+left bracket
Take a screen shot (creates a file on the desktop) Command+Shift+3
Go to system preferences accessibility display to invert colors and increase the size of the mouse pointer.
Go to system preferences accessibility Zoom to change Zoom options. You can choose between full screen Zoom and Picture in Picture modes. You can tell Zoom to follow the mouse pointer or keyboard focus. You can set
Zoom and VoiceOver can run at the same time.
Go to System Preferences Keyboard Shortcuts to assign additional keyboard shortcuts or modify existing ones.