Table 1 Characteristics of the included studies evaluating the prevalence of age-related macular degeneration in the Iranian population
First author | Year | Design | Sampling | Population or clinic | Province (City) | Age group | Number of participants | Visual status of the population | Definition of VI | Risk of bias |
|---|---|---|---|---|---|---|---|---|---|---|
Fotouhi [22] | 2004 | Â C/S | Stratified cluster sampling | Population-based | Tehran (Tehran) | All age | 75 | Visually impaired population | BCVA | Low |
Riazi [32] | 2005 | Â C/S | Non randomized sampling | Clinic patients | Tehran (Tehran) | All age | 468 | Visually impaired population | PVA | High |
Hatef [26] | 2008 |  C/S | Stratified random cluster sampling | Population-based | Tehran (Tehran) | 5–96 | 4354 | General population |  | Medium |
Rajavi [30] | 2011 |  C/S | Multistage cluster systematic random sampling | Population-based | Tehran (Varamin) | ≥ 50 years | 275 | Visually impaired population | PVA | Low |
Sharifi [33] | 2013 |  C/S | Sequential sampling | Clinic patients | Kerman | 20–78 | 1061 | Visually impaired population |  | Medium |
Yekta [35] | 2013 |  C/S | Random cluster sampling | Population-based | Mazandaran (Sari) | ≥ 55 years | 31 | Visually impaired population | BCVA | Medium |
Akhgary [19] | 2014 |  C/S | Non-probability sampling | Clinic patients | Tehran (Tehran) | 7–90 | 204 | Visually impaired population | BCVA | High |
Nodehi [29] | 2015 |  C/S | Non-probability sampling | Clinic patients | Tehran (Tehran) | ≥ 60 years | 392 | General population |  | High |
Hashemi [23] | 2015 |  C/S | Multistage cluster sampling | Population-based | Semnan (Shahroud) | 40–64 | 4387 | General population |  | Medium |
Katibeh [28] | 2015 |  C/S | Cluster random sampling | Population-based | Yazd | 40–80 | 108 | Visually impaired population | BCVA | Low |
Rasoulinejad [31] | 2015 |  C/S | Census | Population-based | Mazandaran (Amirkola) | 60–89 | 505 | General population |  | Low |
Hashemi [24] | 2017 |  C/S | Randomized cluster sampling | Population-based | Mazandaran (Sari) | 55–87 | 937 | General population |  | Low |
Katibeh [27] | 2017 |  C/S | Multistage cluster sampling | Population-based | Gilan | ≥ 50 years | 344 | Visually impaired population | PVA | Medium |
Hashemi [25] | 2018 |  C/S | Random stratified cluster sampling | Population-based | Khorasan (Mashhad) | 1–90 | 62 | Visually impaired population | BCVA | Low |
Ashrafi [20] | 2019 |  C/S | Multistage systematic cluster random sampling | Population-based | Kurdistan | 50–99 | 414 | Visually impaired population | PVA | Low |
Behboudi [21] | 2020 |  C/S | Cluster sampling | Population-based | Gilan | 50–94 | 2275 | General population |  | Low |
Shirzadi [34] | 2020 |  C/S | Random sampling | Clinic patients | Tehran (Tehran) | 9–82 | 228 | Visually impaired population | BCVA | Medium |