Effect of age and refractive error on quick contrast sensitivity function in Chinese adults: a pilot study

Li, Zhouyue; Hu, Yin; Yu, Hanyang; Li, Jingrong; Yang, Xiao

doi:10.1038/s41433-020-1009-7

Cited by 13 publications

(19 citation statements)

References 35 publications

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“…1c). In normal eyes, the CS appeared to decrease significantly by 6.0 cpd [12,13], which was different from that in keratoconus as shown in our study. A previous study showed that a CS threshold of 6.0 cpd was closely correlated with patient's ability to identify traffic signs and objects, reflecting the visual function in daily life [3].…”

Section: Discussioncontrasting

confidence: 99%

The Characteristics of Quick Contrast Sensitivity Function in Keratoconus and Its Correlation with Corneal Topography

Xian

Zhang

et al. 2022

Ophthalmol Ther

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Introduction: To characterize quick contrast sensitivity function (qCSF) in keratoconus and its correlation with corneal topographic parameters. Methods: Patients with keratoconus (n = 120) who visited the Fudan Eye and ENT Hospital between April and June 2021 were enrolled in our study. A total of 215 eyes were subdivided into three groups according to maximum keratometry (K max ): Group 1 (K max B 48 D, 74 eyes), Group 2 (48 D \ K max B 55 D, 64 eyes), and Group 3 (K max [ 55 D, 77 eyes). Manifest refraction, best corrected distance visual acuity (BCVA), corneal topography, and the qCSF test were examined. Intergroup comparisons and correlations among various corneal topographic parameters and qCSF were analyzed. Results: Significant differences in the area under the log CSF (AULCSF) and CSF Acuity among the three groups were found, which decreased with an increase in K max . Contrast sensitivity (CS) between spatial frequencies of 3.0 to 18.0 cpd was significantly different (all P \ 0.05) between Groups 1 and 2. The CS at all spatial frequencies was significantly different (all P \ 0.05) between Group 3 and other two groups. At 3.0-18.0 cpd, CS decreased significantly (all P \ 0.05) in Groups 1-3. Manifest Yiyong Xian and Ling Sun contributed equally and should therefore both be regarded as first authors.

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Section: Discussioncontrasting

confidence: 99%

The Characteristics of Quick Contrast Sensitivity Function in Keratoconus and Its Correlation with Corneal Topography

Xian

Zhang

et al. 2022

Ophthalmol Ther

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“…The study was designed to identify specific macular and peripheral locations where myopes and emmetropes may show differences in CSF. Consistent with Li et al (2020) , we found no contrast sensitivity difference between the emmetropes and myopes in a wide range of SFs in the fovea. However, we found increased contrast sensitivities in the myopia group at the para- (6°) and mid-peripheral (12°) eccentricities.…”

Section: Discussionsupporting

confidence: 88%

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

Zhuang

Chen

et al. 2022

Front. Neurosci.

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PurposeCompare peripheral contrast sensitivity functions (CSF) between myopes and emmetropes to reveal potential myogenic risks during emmetropization.Materials and methodsThis observational, cross-sectional, non-consecutive case study included data from 19 myopes (23.42 ± 4.03 years old) and 12 emmetropes (22.93 ± 2.91 years old) who underwent central and peripheral quick CSF (qCSF) measurements. Summary CSF metrics including the cut-off spatial frequency (cut-off SF), area under log CSF (AULCSF), low-, intermediate-, and high-spatial-frequency AULCSFs (l-, i-, and h-SF AULCSFs), and log CS at 19 SFs in the fovea and 15 peripheral locations (superior, inferior, temporal, and nasal quadrants at 6, 12, 18, and 24° eccentricities, excluding the physiological scotoma at 18°) were analyzed with 3-way and 4-way between-subjects analysis of variance (ANOVA) (α = 0.05).ResultsThree-way ANOVA showed that myopes had significantly increased AULCSF at 6° (mean difference, 0.08; 95% CI, 0.02–0.13; P = 0.007) and 12° (mean difference, 0.09; 95% CI, 0.03–0.14; P = 0.003). Log CS at all 19 SFs were higher in the myopia group compared to the normal group (mean differencesuperior, 0.02; 95% CI, 0.01–0.20; P = 0.02 and mean differenceinferior, 0.11; 95% CI, 0.02–0.21; P = 0.01) at 12°. The h-SF AULCSF at 6° (mean differenceinferior, 1.27; 95% CI, 0.32–2.22; P = 0.009) and i-SF AULCSF at 12° (mean differencesuperior, 5.31; 95% CI, 4.35–6.27; P < 0.001; mean differenceinferior, 1.14; 95% CI, 0.19–2.10; P = 0.02) were higher in myopia vs. normal group.ConclusionWe found myopia increased contrast sensitivity in superior and inferior visual field locations at 6° parafoveal and 12° perifoveal regions of the retina. The observation of increased contrast sensitivities within the macula visual field in myopia might provide important insights for myopia control during emmetropization.

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“…In addition to the abovementioned, the decline is caused by an increased intraocular lens density, internal reflections and light scatter and a general decrease in retinal illumination [10,107,109,110]. Studies found that a decreased sensitivity manifesting as a difficulty in identifying faces supported the physiological change with finding changes in the visual cortex [10,[109][110][111].…”

Section: Contrast Sensitivitymentioning

confidence: 99%

Vision through Healthy Aging Eyes

Erdinest

London²,

Lavy

et al. 2021

Vision

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As life expectancy grows, so too will the number of people adversely affected by age. Although it is acknowledged that many conditions and diseases are associated with age, this mini-review will present a current update of the various visual changes that generally occur in healthy individuals disregarding the possible effects of illness. These alterations influence how the world is perceived and in turn can affect efficiency or the ability to perform ordinary daily tasks such as driving or reading. The most common physical developments include a decreased pupil size and retinal luminance as well as changes both in intercellular and intracellular connections within the retina along the pathway to the visual cortex and within the visual cortex. The quantity and the physical location of retinal cells including photoreceptors, ganglion and bipolar retinal cells are modified. The clarity of intraocular organs, such as the intraocular lens, decreases. These all result in common visual manifestations that include reduced visual acuity, dry eyes, motility changes, a contraction of the visual field, presbyopia, reduced contrast sensitivity, slow dark adaptation, recovery from glare, variation in color vision and a decreased visual processing speed. Highlighting these prevalent issues as well as current and possible future innovations will assist providers to formulate treatments and thereby conserve maximum independence and mobility in the modern mature population.

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Effect of age and refractive error on quick contrast sensitivity function in Chinese adults: a pilot study

Cited by 13 publications

References 35 publications

The Characteristics of Quick Contrast Sensitivity Function in Keratoconus and Its Correlation with Corneal Topography

The Characteristics of Quick Contrast Sensitivity Function in Keratoconus and Its Correlation with Corneal Topography

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

Vision through Healthy Aging Eyes

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