Disclosed herein are systems and methods that enable low-vision users to interact with touch-sensitive secondary displays. An example method includes, while operating a touch-sensitive secondary display in an accessibility mode: displaying, on the primary display, a first user interface for an application, and displaying, on the touch-sensitive secondary display, a second user interface that includes: (i) application-specific affordances, and (ii) a system-level affordance, where each application-specific affordance and the system-level affordance are displayed with a first display size. The method includes detecting an input at the application-specific affordance. In response to detecting the input, and while the input remains in contact: continuing to display the first user interface for the application; and displaying, on the primary display, a zoomed-in representation of the at least one application-specific affordance, where the zoomed-in representation of the application-specific affordance is displayed with a second display size that is larger than the first display size.