The formula to calculate the Midface Ratio is:
\[ \text{MFAC} = \frac{\text{ID}}{\text{DL}} \]
Where:
The midface ratio is a measurement used to assess facial proportions. It is calculated by dividing the interpupillary distance (the distance between the centers of the pupils) by the distance from the pupil center to the top of the lip. This ratio can be useful in various fields such as orthodontics, plastic surgery, and anthropometry to evaluate facial symmetry and aesthetics.
Let's consider an example:
Using the formula to calculate the Midface Ratio:
\[ \text{MFAC} = \frac{2.5}{5} = 0.50 \]
This means that the midface ratio for this scenario is 0.50.