Figure 1
From: Posterior scleral deformation and autonomic dysfunction in normal tension glaucoma
A representative case. A1. A 46-year-old woman. Her SDNN of HRV was 34.87. She was classified as LoAD group. Her axial length was 28.31 mm. B1. A 32-year-old man. His SDNN of HRV was 14.71. He was classified as HiAD group. His axial length was 27.93 mm. A2. Tilt ratio was defined as the ratio between the longest diameter (LD) and the shortest diameter (SD) of the optic disc. Tilt ratio of LoAD group patient was 1.10. B2. Tilt ratio of HiAD group patient was 1.92. A3. Torsion degree was measured between the LD and the horizontal line connecting the fovea and the center of the optic disc. Torsion degree of LoAD group patients was 6.5 \(^\circ \). B3. Torsion degree of HiAD group patients was 17.5 \(^\circ \). A4. PPA/disc ratio was defined as the ratio between area of D and area of P. PPA/disc ratio of LoAD group patients was 0.51. B4. PPA/disc ratio of HiAD group patients was 0.96.
