Electronic versus manual measurements
Unlike taking manual measurements, with ACTIVISU®, electronic measurements are taken on a frame worn by the patient which has a significant impact on the half-pupillary distances. It also takes into account the patient’s natural posture thanks to the patented H3D technology. Consideration of the head cape should not be minimised as it has a direct impact on the half-pupillary distances. Taking electronic measurements also helps to avoid parallax errors in fitting heights, often due to the fact that the optician is not placed at the same height as the patient.
The repeatability of measurements depends on several factors.
The modification of the patient’s posture between two measurements is the first source of difference between several measurements on the same wearer with the same frame. Thanks to numerous robust and repeatability tests, ACTIVISU® electronic measurements solutions allow a result precise to the nearest 10th of a millimeter and degree.
In addition, let us remember that the imperatives of physical distancing are fully respected thanks to the use of electronic measurements solutions.