Table 1. Characteristics of included studies.
| Study Year | Region | Design | No. eye |
Mean±SD age (y) |
Gender (F/M) |
Device (SD-OCT) | Scan area of ONH (mm2) | MD of the VF (dB) |
Severity of glaucoma | Onset time of NAION | ||||
| NAION | POAG | NAION | POAG | NAION | POAG | NAION | POAG | |||||||
| Shin 2021[17] | Korea | CS, R | 27 | 27 | 65.2±7.8 | 61.7±11.1 | 11/16 | 17/10 | Cirrus | 3.45 mm circle | -15.13±8.34 | -15.11±7.57 | Not indicated | >6mo |
| Hondur 2021[18] | Turkey | CS | 21 | 26 | 61±7 | 62±11 | 9/12 | 13/13 | Spectralis | 4.5×4.5 | -18.79±6.13 | -20.99±6.36 | Severe | >6mo |
| Fard 2020[19] | Iran | CS, P | 19 | 37 | 57.4±12.2 | 63.6±0.4 | N/A | N/A | Optovue | 3.4 mm circle | -14.0±5.3 | -12.7±5.5 | Moderate to severe | >6mo |
| Robolleda 2019[20] | Spain | CS | 23 | 25 | 68.6±10.3 | 72.3±9.8 | 12/11 | 11/14 | Spectralis | 3.5 mm circle | -14.7±8.6 | -12.9±8.32 | Not indicated | >6mo |
| Resch 2018[22] | Austria | CS | 20 | 20 | 66.8±8.3 | 71.2±6.0 | 8/12 | 11/9 | Spectralis & Cirrus | 3.4 mm circle | -9.85±4.79 | -10.24±4.71 | Moderate to severe | >6mo |
| Fard 2018[24] | Iran | CS | 31 | 42 | 54.1±11 | 60.2±8 | 15/16 | 16/26 | Spectralis | 3.45 mm circle | -18.4±8.6 | -17.2±8.6 | Moderate to severe | >6mo |
| Liu 2017[25] | Taiwan, China | CS, R | 10 | 16 | 59.9±10.7 | 53.75±10.21 | 6/4 | 7/9 | Optovue | 3.45 mm circle | -12.78±6.34 | -9.69±3.56 | Moderate | >3mo |
| Lee 2017[26] | Korea | CS, R | 35 | 70 | 63.6±8.6 | 64.4±9.0 | 20/15 | 40/30 | Cirrus | Optic disc cube 200×200 | -17.7±8.7 | -13.5±7.5 | Moderate to severe | >3mo |
| Fard 2016[29] | Iran | CS | 30 | 32 | 58.4±10.5 | 65.6±13.1 | 17/13 | 10/22 | Spectralis | 3.4 mm circle | -16.47±9.05 | -16.28±9.98 | Moderate to severe | >3mo |
| Fard 2016[28] | Iran | CS | 42 | 32 | 58.02±8.83 | 64.59±9.79 | 22/20 | 10/22 | Spectralis | 3.4 mm circle | -16.47±9.05 | -16.28±9.98 | Moderate to severe | >3mo |
F/M: Female/male; SD-OCT: Spectral-domain optical coherence tomography; ONH: Optic nerve head; MD: Mean deviation; VF: Visual field; NAION: Non-arteritic anterior ischemic optic neuropathy; POAG: Primary open angle glaucoma; CS: Cross-sectional study; P: Prospective study; R: Retrospective study.