This project aims to demonstrate that adding sounds to visual-field deficit screening tests results in more sensitive functional measures than is currently possible. This counterintuitive idea is based on fundamental insights into how our brain integrates sounds and sights. I will develop a non-invasive, audio-visual task based on eye-movement reaction times. The first step is the optimization of the task with healthy subjects under conditions mimicking glaucoma. And the second step is the validation in glaucoma patients. A successful proof-of-principle will open up the road for the development of a streamlined visual-field deficit screening procedure suitable for the clinic.