Research Article
Association between Retinal Nerve Fiber Layer Thickness and Eye Fatigue
Table 2
Comparison of parameters between groups with and without ocular symptom.
(a) Visual symptom |
| Parameters | Photophobia (-) | Photophobia (+) | P value | Blurring (-) | Blurring (+) | P value |
| No. of subjects (%) | 318 | 68 | | 303 | 73 | | Age (years) | 57.3 ± 14.7 | 56.0 ± 14.4 | 0.509 | 56.5 ± 15.2 | 59.8 ± 12.3 | 0.053 | % of men | 54.4 | 47.5 | 0.314 | 51.2 | 63.0 | 0.066 |
| Schirmer test (% ≤ 5 mm) | 20.0 | 16.7 | 0.912 | 18.8 | 16.7 | 0.912 | MBI (% ≤ 9 s) | 7.5 | 13.6 | 0.128 | 9.6 | 6.8 | 0.418 |
| Macular GCC (μm), mean | 101.6 ± 13.4 | 100.6 ± 14.1 | 0.622 | 101.7 ± 12.8 | 99.9 ± 14.8 | 0.323 | FRTWM (μm) | 266.0 ± 25.6 | 266.2 ± 25.5 | 0.980 | 265.7 ± 26.4 | 267.0 ± 22.0 | 0.842 |
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(b) Non-visual symptom |
| Parameters | Dryness (-) | Dryness (+) | P value | Pain (-) | Pain (+) | P value | Irritation (-) | Irritation (+) | P value |
| No. of subjects (%) | 307 | 70 | | 359 | 17 | | 325 | 51 | | Age (years) | 57.9 ± 14.4 | 53.8 ± 15.1 | 0.045 | 57.5 ± 14.6 | 48.2 ± 14.3 | 0.018 | 56.9 ± 15.00 | 58.2 ± 12.58 | 0.334 | % of men | 54.7 | 48.6 | 0.358 | 52.9 | 64.7 | 0.349 | 54.7 | 48.6 | 0.205 |
| Schirmer test (% ≤ 5 mm) | 20.7 | 11.1 | 0.488 | 20.0 | 0 | 0.082 | 25.9 | 0 | 0.006 | MBI (% ≤ 9 s) | 8.5 | 11.6 | 0.462 | 8.7 | 17.6 | 0.366 | 7.8 | 14.5 | 0.242 |
| Macular GCC (μm), mean | 100.6 ± 13.4 | 105.0 ± 11.5 | 0.007 | 101.3 ± 13.3 | 103.3 ± 10.5 | 0.461 | 101.4 ± 13.5 | 101.5 ± 11.3 | 0.966 | FRTWM (μm) | 266.1 ± 20.3 | 265.9 ± 37.5 | 0.982 | 265.3 ± 25.0 | 272.6 ± 30.3 | 0.526 | 265.4 ± 26.2 | 270.4 ± 19.6 | 0.512 |
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MBI, maximum blinking interval; GCC, thickness of macular ganglion cell complex; FRTWM, full retinal thickness of whole macula.
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