Table 2.
Comparison of contrast sensitivity functions between TAO patients and controls in 5 different spatial frequencies.
| Frequency | TAO patients Mean ± SD (min–max) |
Controls Mean ± SD (min–max) |
P |
|---|---|---|---|
| A | 6.47 ± 1.08 (5–8) |
6.97 ± 0.73 (6–8) |
.039 |
| B | 6.17 ± 0.95 (4–8) |
7.07 ± 0.61 (6–8) |
<.001 |
| C | 6.00 ± 1.08 (2–8) |
7.00 ± 0.64 (6–8) |
<.001 |
| D | 4.65 ± 1.42 (1–7) |
6.32 ± 0.85 (5–8) |
<.001 |
| E | 3.62 ± 1.79 (1–7) |
5.22 ± 1.56 (2–8) |
<.001 |
TAO: thyroid associated ophthalmopathy.
SD: standard deviation.
Letters indicate different spatial frequencies in FACT: 1.5 (A), 3 (B), 6 (C), 12 (D), and 18 (E) cycles per degree.