Table 1 Choroidal vasculature changes and choroidal thickness and volume values in convalescent VKH patients compared to controls
Patients | Controls | P value | |
|---|---|---|---|
No. 13 (22 eyes) | No. 9 (17 eyes) | ||
Choroidal thickness, mean ± SD (range), μm | |||
Fovea | 200 ± 60 (54 to 305) | 288 ± 40 (229 to 350) | <0.0001 (Student's t test) |
Parafovea | 209 ± 61 (46 to 3.5) | 278 ± 36 (209 to 333) | <0.0001 (Student's t test) |
Entire macula | 198 ± 58 (44 to 282) | 268 ± 32 (202 to 318) | <0.0001 (Student's t test) |
Choroidal volume, mean ± SD (range), μm | |||
Fovea | 0.99 ± 0.31 (0.21 to 1.49) | 1.49 ± 0.21 (1.17 to 1.82) | <0.000 (Student's t test) |
Parafovea | 1.28 ± 0.37 (0.29 to 1.9) | 1.75 ± 0.23 (1.32 to 2.11) | <0.0001 (Student's t test) |
Entire macula | 5.33 ± 1.60 (1.01 to 7.33) | 7.51 ± 0.93 (5.6 to 9.02) | <0.0001 (Student's t test) |
Preservation of choroidal vessel layers | |||
Choriocapillaris-equivalent layer | 11/22 (50%) | 17/17 (100%) | <0.000 (chi-square) |
Medium choroidal vessels | 22/22 (100%) | 17/17 (100%) | 1 |
Large choroidal vessels | 17/22 (77%) | 17/17 (100%) | <0.000 (chi-square) |