Eyewear with camera-based compensation that improves the user experience of eyewear devices, including for user's having partial blindness or complete blindness. The camera-based compensation uses eyewear cameras and an algorithm to detect geometric features of physical objects, such as edges. An alert is generated when a physical object is detected, such as an aural alert, that may indicate the nearby presence of the physical object, the distance of the object from the eyewear, and the type of object. This type of geometric detection uses less processing power, thus extending battery life.