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. Author manuscript; available in PMC: 2016 Aug 1.
Published in final edited form as: Ophthalmology. 2015 Jun 6;122(8):1645–1652. doi: 10.1016/j.ophtha.2015.05.005

Table 2.

Anterior and posterior cornea high-order aberrations in Fuchs endothelial dystrophy (FECD) and control eyes

Control FECD
Anterior Mild Moderate Advanced

Total HOAs 0.47 ± 0.16 0.54 ± 0.25+ 0.61 ± 0.27* 0.66 ± 0.28*
Sphere 0.31 ± 0.11 0.29 ± 0.09 0.34 ± 0.15 0.37 ± 0.15
Sphere-like 0.32 ± 0.11 0.29 ± 0.09* 0.34 ± 0.15 0.37 ± 0.15
Coma 0.22 ± 0.17 0.26 ± 0.22 0.29 ± 0.21 0.39 ± 0.30
Coma-like 0.23 ± 0.17 0.28 ± 0.21 0.30 ± 0.21 0.41 ± 0.29
Trefoil 0.10 ± 0.07 0.17 ± 0.22 0.18 ± 0.13** 0.11 ± 0.09
Trefoil-like 0.16 ± 0.08 0.25 ± 0.23 0.29 ± 0.22** 0.21 ± 0.13

Posterior
Total HOAs 0.16 ± 0.03 0.22 ± 0.09* 0.22 ± 0.08*** 0.23 ± 0.09***
Sphere 0.13 ± 0.04 0.13 ± 0.05 0.13 ± 0.04 0.13 ± 0.04
Sphere-like 0.13 ± 0.04 0.13 ± 0.05 0.13 ± 0.04 0.13 ± 0.04
Coma 0.05 ± 0.03 0.09 ± 0.08* 0.09 ± 0.06*** 0.10 ± 0.07**
Coma-like 0.06 ± 0.03 0.11 ± 0.08** 0.10 ± 0.06*** 0.10 ± 0.06***
Trefoil 0.03 ± 0.02 0.06 ± 0.05 0.07 ± 0.05*** 0.09 ± 0.08***
Trefoil-like 0.06 ± 0.03 0.09 ± 0.05 0.11 ± 0.07*** 0.12 ± 0.08***

High-order aberrations (HOAs) of 3rd through 6th order at 6-mm-diameter optical zone were determined by using Scheimpflug imaging (n =178). Data are unadjusted mean ± standard deviation [RMS, μm].

*

p < 0.05

**

p < 0.01

***

p < 0.001, versus controls (GEE models, age adjusted).

+

Minimum detectable difference for total anterior HOAs in mild FECD versus control is 0.15 μm (α=0.05, β=0.20).