Table 2.
Comparison of total retinal thickness measurements in 9 macular sectors obtained using different optical coherence tomography instruments (mean (SD) of thickness measurements).
| Spectralis, HRA, Heidelberg Engineering, Germany† | Spectralis, Heidelberg Engineering, Germany‡ | Cirrus HD-OCT, Carl Zeiss Meditec, Inc.** | RTVue-100, Optovue, Inc., Fremont, CA** | 3D OCT-1000, Topcon, Inc., Paramus, NJ** | 3D OCT-1000, Topcon, Inc.†† | Stratus OCT [OCT3], Carl Zeiss Meditec, Dublin, CA‡‡ | |
|
| |||||||
| Macular sector | |||||||
| Fovea | 265 (15)* | 264 (13) | 262 (16) | 256 (15) | 231 (16) | 222 (18) | 212 (20) |
| Parafovea | |||||||
| Temporal | 307 (15) | 306 (14) | 306 (10) | 308 (13) | 280 (10) | 285 (14) | 251 (13) |
| Superior | 312 (13) | 311 (14) | 320 (12) | 324 (11) | 293 (12) | 297 (15) | 255 (17) |
| Nasal | 325 (16) | 325 (15) | 323 (12) | 324 (11) | 296 (12) | 299 (15) | 267 (16) |
| Inferior | 316 (14) | 314 (13) | 316 (11) | s318 (10) | 288 (10) | 294 (15) | 260 (15) |
| Perifovea | |||||||
| Temporal | 255 (11) | 256 (14) | 255 (9) | 265 (10) | 234 (16) | 244 (12) | 210 (14) |
| Superior | 273 (17) | 271 (18) | 274 (13) | 278 (13) | 249 (13) | 257 (13) | 239 (16) |
| Nasal | 272 (17) | 298 (19) | 293 (13) | 291 (14) | 266 (13) | 273 (14) | 246 (14) |
| Inferior | 265 (16) | 274 (17) | 264 (11) | 267 (12) | 240 (12) | 247 (13) | 210 (13) |