Disclosed herein are systems and methods that enable low-vision users to interact with touch-sensitive secondary displays. An example method includes: displaying, on a primary display, a first user interface for an application and displaying, on a touch-sensitive secondary display, a second user interface that includes a plurality of application-specific affordances that control functions of the application. Each respective affordance is displayed with a first display size. The method also includes: detecting, via the secondary display, an input that contacts at least one application-specific affordance. In response to detecting the input and while it remains in contact with the secondary display, the method includes: (i) continuing to display the first user interface on the primary display and (ii) displaying, on the primary display, a zoomed-in representation of the at least one application-specific affordance. The zoomed-in representation is displayed with a second display size that is larger than the first display size.