The system allows one with no prior training in refraction to subjectively screen, measure, and correct for their own refractive error without the assistance of a second person through subjective self-refraction (SSR). One accomplishes SSR by interacting with refractor input controls, which manipulate lenses in front of their eye(s). The SSR process is accomplished via pre-programming, allowing for direct feedback between the system and user from sensory cues that are prompted by interacting with the input controls. The resulting health data may be displayed or transmitted to the user or another individual for later use. The refraction process may incorporate remote data management technology and computer network capabilities that provides for efficiency, improved accuracy, cost savings and user experience enhancement and may allow for greater access to vision correction services for many people.