Scanning perimeter comprising: - an illuminator adapted to project an illumination beam to illuminate the retina of an eye, said illumination beam passing through the pupil of the eye at a first crossing region during the operation of said scanning perimeter; - acquisition means adapted to receive a reflection beam of light reflected by the retina to acquire images of the retina; - scanning means adapted to cyclically move said illumination beam on the surface of the retina along a scanning direction with a scanning period; - separation means of the illumination and reflection light beams adapted to define, at the pupil, a second crossing region, at which during operation of the scanning perimeter the reflection beam passes through the pupil, said second crossing region being spatially separated from said first crossing region; - first projection means adapted to project a first projection beam to illuminate a portion of retina, said first projection beam passing during operation of the scanning perimeter through the pupil at a separation region comprised between said first crossing region of the pupil and said second crossing region of the pupil; - second projection means adapted to project a second projection beam to project at least a fixation target on the retina, said second projection beam passing during operation of the scanning perimeter through the pupil at said first crossing region or at said second crossing region; - third projection means adapted to project a third projection beam to project at least a light stimulus on the retina, said third projection beam passing during operation of said scanning perimeter through the pupil at said first crossing region or at said second crossing region; and - a control unit to control the operation of the scanning perimeter. - an illuminator adapted to project an illumination beam to illuminate the retina of an eye, said illumination beam passing through the pupil of the eye at a first crossing region during the operation of said scanning perimeter; - acquisition means adapted to receive a reflection beam of light reflected by the retina to acquire images of the retina; - scanning means adapted to cyclically move said illumination beam on the surface of the retina along a scanning direction with a scanning period; - separation means of the illumination and reflection light beams adapted to define, at the pupil, a second crossing region, at which during operation of the scanning perimeter the reflection beam passes through the pupil, said second crossing region being spatially separated from said first crossing region; - first projection means adapted to project a first projection beam to illuminate a portion of retina, said first projection beam passing during operation of the scanning perimeter through the pupil at a separation region comprised between said first crossing region of the pupil and said second crossing region of the pupil; - second projection means adapted to project a second projection beam to project at least a fixation target on the retina, said second projection beam passing during operation of the scanning perimeter through the pupil at said first crossing region or at said second crossing region; - third projection means adapted to project a third projection beam to project at least a light stimulus on the retina, said third projection beam passing during operation of said scanning perimeter through the pupil at said first crossing region or at said second crossing region; and - a control unit to control the operation of the scanning perimeter.