A system for performing measurements of an eye comprises: a measurement tool for performing measurements of the eye, the measurement tool including an objective and implementing an image capturing function using the objective at least one rest designed to maintain a facial measurement position, the at least one rest defining a centering rest portion designed to maintain a lateral facial measurement position an adjuster mechanism adapted to move the objective relative to the eye and a pro- cessing unit configured to control the system to: position, via the adjuster mecha- nism and for a first eye, the objective at a predefined first pre-scan position scan, via the adjuster mechanism, the objective away from the first pre-scan position until the system detects a pupil of the first eye and trigger one or more measurements of the first eye via the measurement tool dependent on the system detecting the pupil of the first eye.
