The variations in magnitude of aberrations between morning–midday and midday–afternoon and the p values (t test) between changes in intraocular pressure and in each respective aberration (fig 4)
| Aberration type | Morning–midday | Midday–afternoon | ||
|---|---|---|---|---|
| Variation | p Value | Variation | p Value | |
| Defocus (sphere) (fig 4A) | −0.7÷0.6 D | >0.05 | −0.5÷0.6 D | 0.0134 |
| Cylinder (astigmatism) (fig 4B) | −0.25÷0.35 D | >0.05 | −0.2÷0.2 D | 0.0131 |
| Coma (fig 4C) | −0.2÷0.2 D mm–1 | >0.05 | −0.1÷0.1 D mm–1 | 0.0125 |
| Trefoil (fig 4D) | −0.50÷0.2 D mm–1 | >0.05 | −0.1÷0.35 D mm–1 | 0.031 |
| Spherical aberration (fig 4E) | −0.25÷0.1 D mm–2 | >0.05 | −0.1÷0.2 D mm–2 | 0.0124 |