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Astigmatism profile in the elderly population: Tehran Geriatric Eye Study

  • Clinical Investigation
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Japanese Journal of Ophthalmology Aims and scope Submit manuscript

Abstract

Purpose

To determine the prevalence of astigmatism and its associated factors and examine astigmatism symmetry patterns in an elderly population.

Study design

Population based cross-sectional study.

Methods

The present population-based cross-sectional study was conducted on an elderly population above 60 years of age in Tehran, Iran in 2019. The sampling was done using the stratified multistage random cluster sampling method. All study participants underwent a complete optometric examination and slit-lamp biomicroscopy.

Results

The prevalence of astigmatism higher than -0.50, -1.00, and -2.00 D was 83% (95% CI: 81 -84), 52 % (95% CI: 50 -54), and 19% (95% CI: 17-20), respectively. These prevalence was 79%(95% CI: 77-81), 46(95% CI: 44-49) and 14(95% CI: 13-16) in subjects without a history of ocular surgery, respectively. Based on cylinder power worse than -1.00 D, 10% (95% CI: 9-12), 20% (95% CI: 18-22), and 21% (95% CI:19-23) of study participants had with the rule, against the rule, and oblique astigmatism, respectively. According to the results of the multiple regression model, male gender, older age, low education level, pure posterior subcapsular cataract, pseudophakia, and myopia were independent factors associated with astigmatism. The prevalence of anisorule astigmatism was 57 % (95% CI: 56-59), the most common anisorule astigmatism was against the rule-oblique type with a prevalence of 36% (95% CI: 34-38).

Conclusion

The prevalence of astigmatism was high in the elderly population of Tehran. More than half of the participants in this study had anisorule astigmatism, and against the rule-oblique combination was more prevalent than other types. A posterior subcapsular cataract, a history of cataract surgery, and myopia were the associated factors of astigmatism in this study.

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Funding

This project was supported by National Institute for Medical Research Development (NIMAD) affiliated with the Iranian Ministry of Health and Medical Education (grant code: 963660).

Author information

Authors and Affiliations

  1. Noor Research Center for Ophthalmic Epidemiology, Noor Eye Hospital, Tehran, Iran

    Hassan Hashemi

  2. Noor Ophthalmology Research Center, Noor Eye Hospital, Tehran, Iran

    Amir Asharlous

  3. Department of Optometry, Mashhad University of Medical Sciences, Mashhad, Iran

    Abbasali Yekta

  4. Translational Ophthalmology Research Center, Tehran University of Medical Sciences, Tehran, Iran

    Mohammadereza Aghamirsalim

  5. Rehabilitation Research Center, Department of Optometry, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran

    Payam Nabovati

  6. Department of Ophthalmology, School of Medicine, Shahid Labbafinezhad Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran

    Mohammad Mehdi Sadoughi

  7. Department of Basic Sciences, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran

    Mehdi Khabazkhoob

Authors
  1. Hassan Hashemi
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  2. Amir Asharlous
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  3. Abbasali Yekta
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  4. Mohammadereza Aghamirsalim
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  5. Payam Nabovati
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  6. Mohammad Mehdi Sadoughi
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  7. Mehdi Khabazkhoob
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Corresponding author

Correspondence to Mehdi Khabazkhoob.

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Conflicts of interest

H. Hashemi, None; A. Asharlous, None; A. Yekta, None; M. Aghamirsalim, None; P. Nabovati, None; M. M. Sadoughi, None; M. Khabazkhoob, None.

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Corresponding Author: Mehdi Khabazkhoob

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Hashemi, H., Asharlous, A., Yekta, A. et al. Astigmatism profile in the elderly population: Tehran Geriatric Eye Study. Jpn J Ophthalmol 66, 461–473 (2022). https://doi.org/10.1007/s10384-022-00936-x

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  • DOI: https://doi.org/10.1007/s10384-022-00936-x

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