Table 1:
Distribution of custom retinal nerve fiber layer and total retinal thickness values
| Retinal Nerve Fiber Layer Thickness Median (Interquartile Range), µm | Total Retinal Thickness Median (Interquartile Range), µm | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Conventional (1.73 mm radius) | BMO to 250 µm | 250 to 500 µm | 500 to 1000 µm | 1000 to 1500 µm | Within BMO | BMO to 250 µm | 250 to 500 µm | 500 to 1000 µm | 1000 to 1500 µm | |
| Control (n = 42) | 91.0 (86–96) | 168.6 (134–183) | 143 (125–156) | 105 (100–114) | 78.1 (76–83) | 201.7 (88–297) | 331.8 (297–374) | 330.6 (311–348) | 312.5 (298–323) | 293.7 (285–306) |
| PE (n = 21) | 128.7*† (102–207) | 306.2*† (262–424) | 227.3*† (205–342) | 130.5*† (122–191) | 88.1*† (82–103) | 710.2*† (568–911) | 612*† (517–771) | 461.8*† (431–585) | 351.8*† (336–416) | 297.4† (289–314) |
| Mild PE (n = 15) | 109.9 (100–132) | 293.6† (260–377) | 218† (204–276) | 127.6† (120–147) | 85.6 (81–90) | 618.8 (516–786) | 529.8† (503–631) | 432.4† (425–498) | 341.1† (332–366) | 295.5† (285–299) |
| PPE (n = 27) | 102* (87–107) | 213* (177–262) | 162* (140–198) | 114.1 (100–124) | 79.4 (74–88) | 548.7* (396–703) | 459.1* (418–538) | 381.5* (356–410) | 322.8 (308–336) | 285.1* (274–293) |
BMO = Bruch’s membrane opening; PE = papilledema; PPE = pseudopapilledema;
*
Comparison with control is statistically significant (P < 0.0125). For mild PE, only statistical comparison with PPE was performed.
†
Comparison with PPE is statistically significant (P < 0.0125).