Ten-year longitudinal investigation of astigmatism: The Yamagata Study (Funagata)
Despite numerous investigations into ocular or corneal astigmatism, the dynamic nature of astigmatism remains poorly understood. To reveal potential associations between age and astigmatism, 264 Japanese participants who underwent systemic and ophthalmological examinations in Funagata Town (Yamagata...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2022-01-01
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| Series: | PLoS ONE |
| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8746748/?tool=EBI |
| _version_ | 1818754578529648640 |
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| author | Hiroyuki Namba Akira Sugano Takanori Murakami Hiroshi Utsunomiya Hidenori Sato Koichi Nishitsuka Kenichi Ishizawa Takamasa Kayama Hidetoshi Yamashita |
| author_facet | Hiroyuki Namba Akira Sugano Takanori Murakami Hiroshi Utsunomiya Hidenori Sato Koichi Nishitsuka Kenichi Ishizawa Takamasa Kayama Hidetoshi Yamashita |
| author_sort | Hiroyuki Namba |
| collection | DOAJ |
| description | Despite numerous investigations into ocular or corneal astigmatism, the dynamic nature of astigmatism remains poorly understood. To reveal potential associations between age and astigmatism, 264 Japanese participants who underwent systemic and ophthalmological examinations in Funagata Town (Yamagata Prefecture, Japan) were evaluated over a 10-year period. Astigmatism was evaluated with regard to the cylinder power, cylinder axis, and vector analyses. Whereas the refractive cylinders showed age-related increases in patients in their 40s to 60s, the corneal cylinders did not change over 10 years. Nevertheless, cylindrical axis of the cornea demonstrated a continuous shift toward against-the-rule (ATR) astigmatism. Vector analyses revealed that the astigmatic shift toward ATR progressed continually after patients reached their 40s, although the shift did not accelerate with age. These novel insights may pave the way for the development of potential strategies for vision correction, including refractive surgeries, and vision-quality maintenance in the elderly. |
| first_indexed | 2024-12-18T05:25:29Z |
| format | Article |
| id | doaj.art-daea977268b8480496b3762be1f9917d |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-18T05:25:29Z |
| publishDate | 2022-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-daea977268b8480496b3762be1f9917d2022-12-21T21:19:33ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-01171Ten-year longitudinal investigation of astigmatism: The Yamagata Study (Funagata)Hiroyuki NambaAkira SuganoTakanori MurakamiHiroshi UtsunomiyaHidenori SatoKoichi NishitsukaKenichi IshizawaTakamasa KayamaHidetoshi YamashitaDespite numerous investigations into ocular or corneal astigmatism, the dynamic nature of astigmatism remains poorly understood. To reveal potential associations between age and astigmatism, 264 Japanese participants who underwent systemic and ophthalmological examinations in Funagata Town (Yamagata Prefecture, Japan) were evaluated over a 10-year period. Astigmatism was evaluated with regard to the cylinder power, cylinder axis, and vector analyses. Whereas the refractive cylinders showed age-related increases in patients in their 40s to 60s, the corneal cylinders did not change over 10 years. Nevertheless, cylindrical axis of the cornea demonstrated a continuous shift toward against-the-rule (ATR) astigmatism. Vector analyses revealed that the astigmatic shift toward ATR progressed continually after patients reached their 40s, although the shift did not accelerate with age. These novel insights may pave the way for the development of potential strategies for vision correction, including refractive surgeries, and vision-quality maintenance in the elderly.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8746748/?tool=EBI |
| spellingShingle | Hiroyuki Namba Akira Sugano Takanori Murakami Hiroshi Utsunomiya Hidenori Sato Koichi Nishitsuka Kenichi Ishizawa Takamasa Kayama Hidetoshi Yamashita Ten-year longitudinal investigation of astigmatism: The Yamagata Study (Funagata) PLoS ONE |
| title | Ten-year longitudinal investigation of astigmatism: The Yamagata Study (Funagata) |
| title_full | Ten-year longitudinal investigation of astigmatism: The Yamagata Study (Funagata) |
| title_fullStr | Ten-year longitudinal investigation of astigmatism: The Yamagata Study (Funagata) |
| title_full_unstemmed | Ten-year longitudinal investigation of astigmatism: The Yamagata Study (Funagata) |
| title_short | Ten-year longitudinal investigation of astigmatism: The Yamagata Study (Funagata) |
| title_sort | ten year longitudinal investigation of astigmatism the yamagata study funagata |
| url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8746748/?tool=EBI |
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