Clinical Study

Optic Disc, Macula, and Retinal Nerve Fiber Layer Measurements Obtained by OCT in Thyroid-Associated Ophthalmopathy

Table 1

Comparison of the parameters between the patients with thyroid-associated ophthalmopathy (TAO) and control group according to side of the eyes.

ParametersRight eyeLeft eye
TAOControlTAOControl

Hertel exophthalmometer (mm)19.1 3.015.2 1.10.00019.2 3.015.1 1.30.000
IOP (mmHg)14.3 2.613.0 1.90.01614.3 2.712.7 2.00.003
Mean RNFL (µm)99.9 29.3102.8 29.7>0.0596.7 29.4100.7 31.1>0.05
Nasal RNFL (µm)79.2 16.483.7 16.2>0.0580.0 16.181.5 16.5>0.05
Inferior RNFL (µm)124.8 14.8130.6 20.4>0.05116.5 17.8123.3 18.3>0.05
Superior RNFL (µm)123.4 18.3123.9 13.0>0.05125.3 17.1128.9 18.5>0.05
Temporal RNFL (µm)72.1 15.473.0 14.4>0.0565.1 10.769.0 16.1>0.05
Mean macula thickness (µm)238.6 29.7245.6 27.90.010240.0 30.0247.6 35.30.011
Central macula thickness (µm)190 23.6203.3 31.10.018191.7 23.9203.9 27.30.025
Nasal macula thickness (µm)260.6 13.7266.1 12.00.044262.0 15.4264.5 18.5>0.05
Inferior macula thickness (µm)248.9 11.4252.9 10.0>0.05249.8 12.2253.9 10.2>0.05
Superior macula thickness (µm)254.0 14.2260.0 10.00.017256.1 14.5261.3 11.4>0.05
Temporal macula thickness (µm)239.9 12.5245.1 10.60.021240.6 13.4254.6 50.20.016
C/D ratio (horizontal)0.49 0.170.44 0.16>0.050.48 0.170.44 0.18>0.05
C/D ratio (vertical)0.42 0.140.39 0.14>0.050.42 0.150.39 0.16>0.05
Disc area (mm2)2.56 0.492.31 0.340.0102.61 0.512.30 0.350.002
Rim area (mm2)1.85 0.521.82 0.41>0.051.94 0.511.80 0.45>0.05
C/D ratio0.26 0.140.20 0.13>0.050.24 0.130.21 0.13>0.05

Data is demonstrated as mean standard deviation.
RNFL: retinal nerve fiber layer.
IOP: intraocular pressure.
Statistical significance.