Controlling Devices Using a Wearable Device

A head-mounted device may be used to control one or more external electronic devices. Gaze input and camera images may be used to determine a point of gaze relative to a display for an external electronic device. The external electronic device may receive information regarding the user's gaze input from the head-mounted device and may highlight one out of multiple user interface elements that is targeted by the gaze input. The head-mounted device may receive input such as keystroke information from an accessory device and relay the input to an external electronic device that is being viewed. The head-mounted device may receive a display configuration request, determine layout information for displays in the physical environment of the head-mounted device, and transmit the layout information to an external device associated with the displays.