The present specification describes methods and systems for tracking vision performance, using various techniques such as and not limited to electrooculography. A modular device is integrated with frames of eyeglasses that can be worn by a user. The device incorporates one or more biosensors such as EOG sensors. EOG recording may be used to estimate eyelid and eye motion, and eye gaze direction. The modular device may be fitted into new eyewear or retrofitted into existing eyewear for tracking eyes of the wearer. Embodiments of the present specification provide systems and methods to enable seamless integration of eye tracking into everyday life to maximize productivity and performance.
