Characteristics of the studies included in the meta-analysis
| Study (country/region) | Year examined | Area | Age range | N | Male/Female ratio | Response rate (%) | Grading system | Assessment |
| SEED (Singapore) | 2004–2011 | Urban | ≥40 | 8716 | 0.98 | 75.6 | M | 7 |
| The Shaanxi Eye Study (China) | 2003 | Rural | 1–91 | 6815 | 0.87 | 80.2 | V | 6 |
| The Yangxi Eye Study (China) | 2014 | Rural | ≥50 | 4469 | 1.00 | 90.7 | P | 6 |
| The Shihpai Eye Study (Taiwan China) | 1999–2000 | Urban | ≥65 | 1058 | 1.64 | 66.6 | A | 7 |
| CHES (USA) | 2010–2013 | Urban | ≥50 | 4582 | 0.58 | 79 | M | 6 |
| The Handan Eye Study (China) | 2006–2007 | Rural | ≥30 | 6603 | 0.87 | 90.4 | V | 6 |
| The Beijing Eye Study (China) | 2001 | Urban & Rural | ≥40 | 4319 | – | 83.4 | V | 6 |
| The Hisayama Eye Study (Japan) | 2005 | Urban | ≥40 | 1892 | 0.70 | 42.7 | H | 5 |
| The Blue Mountain Eye Study (Australia) | 1992–1994 | Urban | ≥49 | 3583 | 1.30 | 82.4 | V | 8 |
| The Central India Eye and Medical Study (India) | 2006 | Rural | ≥30 | 4561 | 0.86 | 80.1 | P | 7 |
| The Hisayama Eye Study (Japan) | 2012 | Urban | ≥40 | 2874 | 0.78 | 63.8 | M | 6 |
| The Hisayama Eye Study (Japan) | 2017 | 2936 | 0.79 | 65.7 | ||||
| The Wuxi Eye Study (China) | 2010 | Urban | ≥50 | 6150 | 0.74 | 90.7 | V | 6 |
A, Avilla’s Grading Method for PM; CHES, the Chinese American Eye Study; H, PM Classification by Hayashi; M, International META-PM Classification; META-PM, meta analyses of pathologic myopia; P, International Photographic Classification and Grading System of Myopic Maculopathy; SEED, the Singapore Epidemiology of Eye Disease; V, PM Classification by Vongphanit.