Keeping the additional data filled in an organized way will allow you to obtain greater reliability in the analysis of your results. Visual performance may vary with variables such as pupil diameter, patient age, or months of follow-up.
Within the Statistics section, you can apply special filters to have a better knowledge of each multifocal procedure. The pupil must be measured under the same lighting conditions as the curve (approx. 80 - 100 lux ambient lighting). In case you use a system that measures photopic and mesopic pupil diameters you can use the average between both measurements.