Apple - CTRL scroll zoom on Mavericks gone

Press ⌘ command+⌥ option+F5, then select Enable zoom scroll gestures.

OS X thinks that the mouse you are using doesn't have a scroll wheel.

I'm here years later after returning to my MacBook Air and finding this zoom feature missing. Type in "zoom" in System Preferences search and picked the "zoom to enlarge screen" option from the list and it took me right there!