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SCP and DCP perfusion density (PD) were measured in optical coherence tomography angiography (OCTA) macular scans of 145 eyes of 145 healthy Japanese subjects, and findings were compared with SCP FAZ and clinical data. We found that age was negatively correlated with SCP and DCP PD (r\u2009=\u2009\u22120.17, <jats:italic>P<\/jats:italic>\u2009=\u20090.04 and r\u2009=\u2009\u22120.20, <jats:italic>P<\/jats:italic>\u2009=\u20090.02, respectively) and positively correlated with FAZ area (r\u2009=\u20090.18, <jats:italic>P<\/jats:italic>\u2009=\u20090.03). SCP and DCP PD were correlated with each other (r\u2009=\u20090.67, <jats:italic>P<\/jats:italic>\u2009&lt;\u20090.001). FAZ area was negatively correlated with SCP PD, DCP PD and central macular thickness (CMT) (r\u2009=\u2009\u22120.18, <jats:italic>P<\/jats:italic>\u2009=\u20090.03; r\u2009=\u2009\u22120.25, <jats:italic>P<\/jats:italic>\u2009&lt;\u20090.01; and r\u2009=\u2009\u22120.39, <jats:italic>P<\/jats:italic>\u2009&lt;\u20090.001, respectively). FAZ was larger and CMT was lower (<jats:italic>P<\/jats:italic>\u2009=\u00a00.01 and <jats:italic>P<\/jats:italic>\u2009&lt; 0.001, respectively) in women than men. SCP and DCP PD were positively correlated with estimated glomerular filtration rate (r\u2009=\u20090.17, <jats:italic>P<\/jats:italic>\u2009=\u20090.03 and r\u2009=\u20090.24, <jats:italic>P<\/jats:italic>\u2009&lt;\u20090.01, respectively). Multiple regression analysis confirmed that age independently affected DCP PD and FAZ (<jats:italic>P<\/jats:italic>\u2009=\u20090.02 and <jats:italic>P<\/jats:italic>\u2009&lt;\u20090.01, respectively) and that CMT independently affected FAZ area (<jats:italic>P<\/jats:italic>\u2009&lt;\u20090.001). Thus, normal subjects showed age-related decreases in macular PD and renal function. FAZ and CMT were related, suggesting that age-related changes in macular thickness also affect capillary vasculature.<\/jats:p>","DOI":"10.1038\/s41598-019-45336-3","type":"journal-article","created":{"date-parts":[[2019,6,20]],"date-time":"2019-06-20T10:03:04Z","timestamp":1561024984000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":31,"title":["Quantitative analysis of the macula with optical coherence tomography angiography in normal Japanese subjects: The Taiwa Study"],"prefix":"10.1038","volume":"9","author":[{"given":"Risa","family":"Sato","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0642-793X","authenticated-orcid":false,"given":"Hiroshi","family":"Kunikata","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Toshifumi","family":"Asano","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Naoko","family":"Aizawa","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Naoki","family":"Kiyota","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yukihiro","family":"Shiga","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5987-4421","authenticated-orcid":false,"given":"Koji M.","family":"Nishiguchi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Keiichi","family":"Kato","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Toru","family":"Nakazawa","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2019,6,20]]},"reference":[{"key":"45336_CR1","doi-asserted-by":"publisher","first-page":"66","DOI":"10.1001\/jamaophthalmol.2014.3950","volume":"133","author":"RF Spaide","year":"2015","unstructured":"Spaide, R. 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