Table 2.
Changes in choroidal thickness after playing games on a virtual reality smartphone-based head-mounted display (VR SHMD) or smartphone.
| Variable | VR SHMD | Smartphone | ||||
|---|---|---|---|---|---|---|
| Pre | Post | p value* | Pre | Post | p value* | |
| Dominant eye | ||||||
| Subfoveal CT | 304 (111.3) | 318 (128.3) | 0.793 | 307 (119.0) | 291 (135.0) | 0.919 |
| 1-mm zone nasal CT | 275 (120.8) | 300 (125.3) | 0.318 | 272 (119.0) | 272 (137.0) | 0.957 |
| 1-mm zone temporal CT | 175 (118.0) | 187 (134.8) | 0.997 | 189 (128.0) | 196 (107.0) | 0.889 |
| 3-mm zone nasal CT | 309 (107.8) | 313 (109.3) | 0.157 | 307 (103.0) | 309 (146.0) | 0.788 |
| 3-mm zone temporal CT | 313 (109.5) | 320 (107.0) | 0.707 | 295 (114.0) | 298 (124.0) | 0.453 |
| Macular CT overall | 279 (78.1) | 283 (111.3) | 0.725 | 278.4 (119.6) | 272.8 (101.4) | 0.889 |
| Non-dominant eye | ||||||
| Subfoveal CT | 336 (155.3) | 319 (129.3) | 0.431 | 321 (138.0) | 317 (127.0) | 0.775 |
| 1-mm zone nasal CT | 301 (151.0) | 291 (144.0) | 0.297 | 289 (120.8) | 281 (136.0) | 0.788 |
| 1-mm zone temporal CT | 167 (90.0) | 178 (110.5) | 0.188 | 169 (84.0) | 177 (88.0) | 0.969 |
| 3-mm zone nasal CT | 344 (128.3) | 339 (111.0) | 0.467 | 336 (103.0) | 322 (125.0) | 0.880 |
| 3-mm zone temporal CT | 331 (114.8) | 316 (98.5) | 0.687 | 325 (114.0) | 315 (109.0) | 0.246 |
| Macular CT overall | 292.4 (125.9) | 286.2 (97.9) | 0.339 | 288.2 (118.0) | 284.4 (92.2) | 0.619 |
Data presented as the median (interquartile range) unless otherwise indicated. CT, choroidal thickness.
*Wilcoxon-signed rank test and adjusted using the Benjamini–Hochberg procedure.