Fig. 5

Actabular angle of Tonnis in patient no. 10 (horizontal line is parallel to the inter-tear drop line and the other line from the medial end of the sourcil to the lateral end of the sourcil)
Actabular angle of Tonnis in patient no. 10 (horizontal line is parallel to the inter-tear drop line and the other line from the medial end of the sourcil to the lateral end of the sourcil)