Table 4

Mean differences in macular thickness(SD) (micron) between patients’ affected and fellow- eyes
Macular regions/ OCT SS Mean differences(SD) T(df) and p-value1
All patients (n = 28)2
F0 (MMFT) 11.6(21) 2.91(27) 0.007
Inner ring F1 (MFT) 14.1(16) 4.71(27) <0.0005
Middle ring MCT 14.8(12) 6.42(27) <0.0005
Outer ring MPT 15.0(12) 6.83(27) <0.0005
Total region MTT 14.7(12) 6.31(27) <0.0005
OCT SS −0.04(2) −0.09(27) 0.93
Patients with VA ≥ 0.8 (n = 23)
F0 (MMFT) 11.6(22) 2.54(22) 0.019
Inner ring F1 (MFT) 14.6(16) 4.42(22) <0.0005
Middle ring MCT 15.5(12) 6.27(22) <0.0005
Outer ring MPT 15.6(11) 6.86(22) <0.0005
Total region MTT 15.3(12) 6.20(22) <0.0005
OCT SS −0.22(2) −0.49(22) 0.63

OCT: Optical coherence tomography, SS: signal strength, MMFT: mean minimal foveolar thickness, MFT: mean foveal thickness, MCT: mean central thickness, MPT: mean peripheral thickness, MTT: mean total thickness. The outer diameter of the inner, middle and outer rings is 1, 2.22 and 3.45 millimeters respectively. For further definition of macular regions see Figure 1. VA: visual acuity. 1One-sample Student's t-test (test value = 0 for differences between patients’ eyes). 228 patients with bilateral scans were included in this analysis.

Wexler et al.

Wexler et al. BMC Ophthalmology 2012 12:30   doi:10.1186/1471-2415-12-30

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