The mean depths of the superior nasal and temporal, inferior nasal and temporal, fornices as well as mean depths of medial nasal and temporal canthi fornices in normal eyes were 14.1±2.5 ...

In a 2D plane, using the medial and lateral canthi as reference points, trilateration locates two points (Figure 1). Then specifying whether the site is in the upper or the lower lid narrows it ...