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Updated: Aug 24, 2025

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Assessing the contrast sensitivity function in myopic parafovea: A quick contrast sensitivity functions study.

Zixuan Xu1, Yijing Zhuang1, Zhipeng Chen1

  • 1State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China.

Frontiers in Neuroscience
|October 24, 2022
PubMed
Summary

Myopia is associated with increased contrast sensitivity in peripheral vision, particularly in the parafoveal and perifoveal regions. These findings offer insights into potential myogenic risks and myopia control strategies during emmetropization.

Keywords:
contrast sensitivity function (CSF)myopiaparafoveaperipheral visual fieldquick CSF

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Area of Science:

  • Ophthalmology
  • Visual Neuroscience

Background:

  • Myopia, a common refractive error, affects visual development.
  • Understanding peripheral visual function in myopia is crucial for emmetropization research.

Purpose of the Study:

  • To compare peripheral contrast sensitivity functions (CSF) between myopes and emmetropes.
  • To investigate potential myogenic risks associated with myopia during emmetropization.

Main Methods:

  • An observational, cross-sectional study involving 19 myopes and 12 emmetropes.
  • Central and peripheral quick CSF (qCSF) measurements were obtained.
  • Analysis included cut-off spatial frequency (cut-off SF), area under log CSF (AULCSF), and log contrast sensitivity (log CS) at various spatial frequencies and eccentricities using ANOVA.

Main Results:

  • Myopes exhibited significantly increased AULCSF at 6° and 12° eccentricities compared to emmetropes.
  • Log CS was higher in myopes across multiple spatial frequencies, especially at 12° in superior and inferior visual fields.
  • Higher high-spatial-frequency AULCSF at 6° and intermediate-spatial-frequency AULCSF at 12° were observed in myopes.

Conclusions:

  • Myopia is linked to enhanced contrast sensitivity in the superior and inferior peripheral retina at 6° and 12° eccentricities.
  • Increased contrast sensitivity within the macula visual field in myopia may inform myopia control strategies.
  • Findings suggest potential insights into myogenic risks during emmetropization.