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Br J Ophthalmol 91:1054-1058 doi:10.1136/bjo.2006.109793
  • Clinical science
    • Extended reports

Fluctuations in intraocular pressure and the potential effect on aberrations of the eye

Table 2

 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

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