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Trends of Visual Impairment and Blindness in the Singapore Chinese Population over a Decade.

Publication ,  Journal Article
Tham, Y-C; Lim, S-H; Shi, Y; Chee, M-L; Zheng, YF; Chua, J; Saw, S-M; Foster, P; Aung, T; Wong, TY; Cheng, C-Y
Published in: Sci Rep
August 15, 2018

We evaluated the prevalence of visual impairment (VI) and blindness among Chinese adults in the Singapore Chinese Eye Study (SCES, 2009-2011), and compared the trends with the Tanjong Pagar Survey, Singapore (TPS), conducted a decade earlier. The SCES comprised of 3,353 Chinese adults aged ≥40 years (response rate, 72.8%). Participants underwent standardized examinations, including measurements of presenting, and best-corrected visual acuity (VA). Bilateral VI (VA < 20/40 to ≥20/200) and blindness (VA < 20/200) were defined based on the United States definition (better-seeing eye). Age-standardized prevalence was calculated using the 2010 Singapore Chinese Population Census. Primary causes and factors associated with VI and blindness were evaluated. In SCES, the age-standardized prevalence of presenting bilateral VI and blindness were 17.7% and 0.6%, respectively; the age-standardised prevalence of best-corrected bilateral VI and blindness were 3.4% and 0.2%, respectively. The previous TPS reported similar rates of best-corrected bilateral VI (3.8%) and blindness (0.3%). In SCES, cataract remains the main cause for both best-corrected bilateral VI (76.0%) and blindness (50.0%). Older age, female, lower income, lower educational level, and smaller housing type were associated with presenting bilateral VI or blindness (all P ≤ 0.025). These findings will be useful for the planning of eye care services and resource allocation.

Duke Scholars

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Published In

Sci Rep

DOI

EISSN

2045-2322

Publication Date

August 15, 2018

Volume

8

Issue

1

Start / End Page

12224

Location

England

Related Subject Headings

  • Visually Impaired Persons
  • Visual Acuity
  • Vision Disorders
  • Singapore
  • Prevalence
  • Middle Aged
  • Male
  • Longitudinal Studies
  • Humans
  • Female
 

Citation

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ICMJE
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Tham, Y.-C., Lim, S.-H., Shi, Y., Chee, M.-L., Zheng, Y. F., Chua, J., … Cheng, C.-Y. (2018). Trends of Visual Impairment and Blindness in the Singapore Chinese Population over a Decade. Sci Rep, 8(1), 12224. https://doi.org/10.1038/s41598-018-30004-9
Tham, Yih-Chung, Sing-Hui Lim, Yuan Shi, Miao-Li Chee, Ying Feng Zheng, Jacqueline Chua, Seang-Mei Saw, et al. “Trends of Visual Impairment and Blindness in the Singapore Chinese Population over a Decade.Sci Rep 8, no. 1 (August 15, 2018): 12224. https://doi.org/10.1038/s41598-018-30004-9.
Tham Y-C, Lim S-H, Shi Y, Chee M-L, Zheng YF, Chua J, et al. Trends of Visual Impairment and Blindness in the Singapore Chinese Population over a Decade. Sci Rep. 2018 Aug 15;8(1):12224.
Tham, Yih-Chung, et al. “Trends of Visual Impairment and Blindness in the Singapore Chinese Population over a Decade.Sci Rep, vol. 8, no. 1, Aug. 2018, p. 12224. Pubmed, doi:10.1038/s41598-018-30004-9.
Tham Y-C, Lim S-H, Shi Y, Chee M-L, Zheng YF, Chua J, Saw S-M, Foster P, Aung T, Wong TY, Cheng C-Y. Trends of Visual Impairment and Blindness in the Singapore Chinese Population over a Decade. Sci Rep. 2018 Aug 15;8(1):12224.

Published In

Sci Rep

DOI

EISSN

2045-2322

Publication Date

August 15, 2018

Volume

8

Issue

1

Start / End Page

12224

Location

England

Related Subject Headings

  • Visually Impaired Persons
  • Visual Acuity
  • Vision Disorders
  • Singapore
  • Prevalence
  • Middle Aged
  • Male
  • Longitudinal Studies
  • Humans
  • Female