Optic Disc, Macula, and Retinal Nerve Fiber Layer Measurements Obtained by OCT in Thyroid-Associated Ophthalmopathy
Table 3
Comparison of OCT parameters and IOP between control group and the patients with thyroid-associated ophthalmopathy based on Hertel exophthalmometer values.
Parameters
Control
Group 1 ()
P
Group 2 ()
P
Group 3 ()
IOP (mmHg)
12.9 ± 1.9
15.1 ± 2.4
0.000
16.3 ± 2.0
0.000
17.0 ± 4.5
0.000
Mean macula thickness (µm)
246.6 ± 31.8
239.5 ± 32.9
0.019
240.8 ± 30.1
>0.05
246.9 ± 26.7
>0.05
Central macula thickness (µm)
203.6 ± 29.1
184.5 ± 25.5
0.002
193.4 ± 18.7
>0.05
202.7 ± 12.1
>0.05
C/D ratio (vertical)
0.39 ± 0.15
0.47 ± 0.15
0.013
0.33 ± 0.18
>0.05
0.43 ± 0.10
>0.05
Disc area (mm2)
2.31 ± 0.34
2.66 ± 0.48
0.000
2.15 ± 0.53
>0.05
2.57 ± 0.14
>0.05
Rim area (mm2)
1.81 ± 0.43
1.83 ± 0.61
>0.05
1.49 ± 0.52
0.036
2.00 ± 0.22
>0.05
C/D ratio
0.21 ± 0.13
0.31 ± 0.17
0.003
0.24 ± 0.16
>0.05
0.21 ± 0.09
>0.05
Data is demonstrated as mean ± standard deviation. Group 1: measurement of exophthalmometer between 21 and 23 mm; Group 2: >23 mm; Group 3: those with a difference of more than 2 mm between the eyes. IOP: intraocular pressure. Statistical significance.
