Table 2.
Ophthalmological variables at baseline and at the end of the study in patients treated with the DHA supplement and in controls.
| Variables | Control Group (n = 15) | DHA Group (n = 19) | Within-Group p Value |
Between-Group p Value |
||||
|---|---|---|---|---|---|---|---|---|
| Baseline | End of Study | Baseline | End of Study | Control Group | DHA Group | Baseline | End of Study | |
| K1, diopters | 43.5 (3.0) | 43.6 (3.1) | 44.9 (2.9) | 44.0 (2.8) | 0.571 | 0.387 | 0.176 | 0.163 |
| K2, diopters | 47.0 (3.5) | 47.1 (3.4) | 48.8 (3.8) | 48.8 (3.7) | 0.221 | 0.779 | 0.155 | 0.174 |
| Kmax, diopters | 53.2 (6.0) | 53.2 (5.8) | 54.9 (5.6) | 54.8 (5.6) | 0.671 | 0.271 | 0.407 | 0.440 |
| Km, diopters | 45.1 (3.1) | 45,2 (3.1) | 46.8 (3.0) | 46.8 (2.9) | 0.299 | 0.409 | 0.147 | 0.145 |
| Astigmatism axis, degrees | 124.4 (52.7) | 119.7 (58.4) | 66.0 (63.6) | 69.7 (60.8) | 0.369 | 0.310 | 0.006 | 0.021 |
| Astigmatism degree diopters | 3.4 (1.6) | 3.5 (1.7) | 3.8 (2.7) | 3.8 (2.7) | 0.539 | 0.494 | 0.578 | 0.711 |
| Asphericity coefficient (D) | ||||||||
| Horizontal hemi-axis | −0.4 (0.4) | −0.4 (0.4) | −0.7 (0.3) | −0.7 (0.3) | 0.612 | 0.119 | 0.022 | 0.015 |
| Vertical hemi-axis | −0.4 (0.3) | −0.4 (0.4) | −0.8 (0.3) | −0.8 (0.3) | 0.346 | 0.771 | 0.008 | 0.007 |
| CAT, µm | 489.8 (38.7) | 491.6 (39.2) | 469,3 (46.7) | 470.3 (46.7) | 0.147 | 0.318 | 0.172 | 0.157 |
| CCT, µm | 495.8 (37.2) | 498.2 (37.6) | 478.1 (44.6) | 478.4 (44.7) | 0.045 | 0.734 | 0.217 | 0.171 |
| MCT, µm | 470.4 (51.9) | 470.7 (50.6) | 459.8 (46.5) | 461.0 (46.4) | 0.830 | 0.252 | 0.541 | 0.568 |
| CA, mm | 2.4 (1.8) | 2.4 (1.8) | 2.2 (1.3) | 2.3 (1.3) | 0.111 | 0.528 | 0.675 | 0.900 |
| IOP GAT, mmHg | 10.8 (2.4) | 11.9 (4.0) | 11.5 (3.2) | 10.3 (3.0) | 0.214 | 0.052 | 0.373 | 0.192 |
| IOP rebound, mmHg | 10.4 (3.3) | 10.8 (2.8) | 10.6 (3.2) | 9.9 (3.0) | 0.672 | 0.371 | 0.839 | 0.381 |
K1: flat keratometry; K2: steep keratometry; Kmax: maximum keratometry; Km: mean keratometry; CAT: corneal apex thickness; CCT: central corneal thickness; MCT: minimum corneal thickness; CA: chromatic aberration; IOP: intraocular pressure; GAT: Goldmann applanation tonometry. Data expressed as mean and standard deviation (SD).