Fig. 3

Representative cases from the non-IPS and IPS groups. A 24-year-old male in the non-IPS group. The axial length is 24.66 mm. The oculus is cone-shaped, centered on the fovea (A), and the Haller's vessel running patterns are symmetric (B). The IPS group includes one 25-year-old male. The axial length is 24.11 mm, and the inflection point is shifted inferior to the fovea (C). The Haller's vessel running pattern is an upper-dominant pattern (D). IPS, inferior posterior staphyloma