yes there is a certain measurement that determines where my brows should be. It is entirely based on the structure of the bone, and the eyebrows need to start at the inner corner of the nose and climb the bridge of the nose to reach the eyebrows. The tail (or edge) of the eyebrows should lean against the outer wrinkles of the nose, the wrinkles of the eyes, and the eyebrows. The highest point of the eyebrows should line up with the bridge of the nose and cut across the pupil of the eye to the top of the eyebrows. This measurement applies to any face shape.