Table 2.
Macular thickness of HbSC and HbSS eyes in all subfields of the ETDRS grid
| Subfield on ETDRS grid | Right Eyes |
Left Eyes |
||||
|---|---|---|---|---|---|---|
| HbSC (83 Right Eyes) |
HbSS (83 Right Eyes) |
p Value for Difference | HbSC (74 Left Eyes) |
HbSS (79 Left Eyes) |
p Value for Difference | |
| Mean in microns (SD) | Mean in microns (SD) | Mean in microns (SD) | Mean in microns (SD) | |||
| Central | 207 (24) | 202 (20) | 0.175 | 206 (22) | 202 (21) | 0.200 |
| Inner superior | 289 (24) | 283 (29) | 0.131 | 288 (22) | 283 (31) | 0.297 |
| Inner nasal | 289 (20) | 285 (25) | 0.322 | 290 (20) | 288 (23) | 0.562 |
| Inner inferior | 286 (26) | 281 (31) | 0.290 | 287 (21) | 283 (26) | 0.229 |
| Inner temporal | 275 (23) | 266 (33) | 0.039* | 271 (21) | 264 (38) | 0.124 |
| Outer superior | 263 (19) | 256 (18) | 0.018* | 263 (18) | 259 (24) | 0.329 |
| Outer nasal | 276 (19) | 271 (20) | 0.092 | 274 (20) | 272 (22) | 0.473 |
| Outer inferior | 256 (22) | 250 (18) | 0.075 | 255 (17) | 250 (20) | 0.107 |
| Outer temporal | 240 (24) | 228 (26) | 0.005* | 241 (19) | 233 (26) | 0.022* |
ETDRS, Early Treatment Diabetic Retinopathy Study.
Right and left eye measurements were not combined.
*
Statistically significant difference between the 2 genotypes (p < 0.05).