Table 4.

Mean orbital floor height to the key surgical landmarks

Landmarks	Harvey et al. [13] Mean(mm) ± SD	Wuttiwongsanon et al. [14] Mean(mm) ± SD	Lee et al. [15] Mean(mm) ± SD	Lee [19] Mean(mm) ± SD
Orbital floor to nasal floor	33.9 ± 3.0	35.2 ± 3.4	33.45 ± 2.83	33.83 ± 3.40
Orbital floor to sphenoid roof	11.0 ± 2.9	10.5 ± 3.3	12.18 ± 3.20	12.02 ± 2.93
Orbital floor to ethmoid roof	14.5 ± 3.5	14.1 ± 3.1	14.08 ± 3.03	Not measured