The ideal female facial proportions according to the Golden Ratio ✨ In our Portsmouth clinic, we use a Phi caliper to assess facial balance — not perfection. In Part 2, the distance between the eyes is used as ratio 1. When flipped, the caliper shows ratio 1.618. This measurement is compared to the brow length, the distance from the inner eye corner to the cheek apex, from the cheek apex to the base of the nose, the width of the mouth, the length of the nose, and the height of the forehead. Thes