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Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter
05:14

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Published on: September 16, 2025

The association between refractive errors and cataract: the tehran eye study.

Hassan Hashemi1, Mehdi Khabazkhoob, Mohammad Miraftab

  • 1Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran.

Middle East African Journal of Ophthalmology
|July 7, 2011
PubMed
Summary

Myopia is more common in individuals with nuclear and posterior subcapsular cataracts. Hyperopia was less prevalent overall but significant in cortical cataract cases. Further research is needed for cortical cataract and hyperopia correlation.

Keywords:
CataractPopulation-Based StudyRefractive Errors

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Last Updated: May 31, 2026

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter
05:14

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter

Published on: September 16, 2025

Area of Science:

  • Ophthalmology
  • Refractive Error Research
  • Cataract Studies

Background:

  • Refractive errors, including myopia and hyperopia, are common visual impairments.
  • Cataracts, clouding of the lens, are a leading cause of vision loss worldwide.
  • Understanding the relationship between refractive errors and cataract types is crucial for eye care.

Purpose of the Study:

  • To investigate the association between different types of cataracts and refractive errors.
  • To analyze refractive error prevalence in relation to nuclear, cortical, and posterior subcapsular cataracts.
  • To conduct the study in Tehran, Iran, providing regional insights.

Main Methods:

  • A cross-sectional survey involving 1313 participants over 40 years old.
  • Refractive errors (myopia, hyperopia) measured under cycloplegia.
  • Cataract types classified using the Lens Opacities Classification System III.

Main Results:

  • Myopia was more prevalent in individuals with cataracts (OR: 2.00).
  • Higher odds of myopia were observed in nuclear cataracts (OR: 1.81) and those with posterior subcapsular cataract (PSC) (OR: 3.33).
  • Hyperopia showed a significant association with cortical cataract (OR: 3.77).

Conclusions:

  • Nuclear and PSC cataracts are linked to a higher prevalence of myopia.
  • Hyperopia prevalence was lower overall in cataract patients but significant in cortical cataract cases.
  • Further studies are recommended to elucidate the cortical cataract-hyperopia correlation.