Related Experiment Video
Updated: Jul 31, 2025
A Method to Quantify Visual Information Processing in Children Using Eye Tracking
Published on: July 9, 2016
Characteristics and Related Parameters of Quick Contrast Sensitivity Function in Chinese Ametropia Children
Yuhao Ye1, Yiyong Xian, Fang Liu
1Department of Ophthalmology and Optometry (Y.Y., Y.X., F.L., X.Z., J.Z.), Eye & ENT Hospital, Fudan University, Shanghai, China; NHC Key Laboratory of Myopia (Fudan University) (Y.Y., Y.X., F.L., X.Z., J.Z.), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China; Shanghai Research Center of Ophthalmology and Optometry (Y.Y., Y.X., F.L., X.Z., J.Z.), Shanghai, China; Shanghai Engineering Research Center of Laser and Autostereoscopic 3D for Vision Care (20DZ2255000) (Y.Y., Y.X., F.L., X.Z., J.Z.)Division of Arts and Sciences (Z.-L.L.), NYU Shanghai, Shanghai, China; Center for Neural Science and Department of Psychology, New York University, New York; NYU-ECNU Institute of Brain and Cognitive Science, NYU Shanghai, Shanghai, China.
Insights
Refractive error significantly impacts visual function in children. Refraction sphere and spherical equivalent are key factors affecting quick contrast sensitivity function (qCSF), with decreased contrast sensitivity noted in low myopia.
Area of Science:
- Ophthalmology
- Optometry
- Vision Science
Background:
- Contrast sensitivity is crucial for visual function.
- Understanding factors affecting contrast sensitivity in children is important for early detection of visual impairments.
Purpose of the Study:
- To investigate the characteristics of quick contrast sensitivity function (qCSF) and its related parameters in Chinese ametropia children.
- To identify the correlation between refractive parameters and qCSF in pediatric ametropia.
Main Methods:
- A case series study involving 106 eyes of 53 ametropic children.
- Evaluated manifest refraction, axial length, corneal curvature, and monocular/binocular qCSF (including area under log CSF [AULCSF], CSF acuity, and contrast sensitivity [CS]).
- Subjects were grouped by age and refractive parameters for analysis.
Main Results:
- Refraction sphere (RS) and spherical equivalent (SE) were major factors correlated with qCSF readings.
- Significant differences in CS at medium spatial frequencies (3.0 and 6.0 cpd) were observed across RS/SE groups.
- Low myopia children showed significantly decreased CS at medium and high spatial frequencies (12.0 cpd).
Conclusions:
- RS and SE are primary determinants of qCSF in uncorrected pediatric ametropia.
- CS at medium spatial frequencies decreases with increasing RS/SE.
- Findings offer practical value for visual function screening in children, particularly those with low myopia.
Purpose:
To investigate the characteristics of quick contrast sensitivity function (qCSF) and its related parameters in Chinese ametropia children.
Methods:
This case series study enrolled 106 eyes of 53 children (male/female=29/24, age: 9.04±2.06 years). Examinations included manifest refraction, axial length, corneal curvature, and monocular and binocular qCSF readings without refractive correction (area under log CSF [AULCSF], CSF acuity, and contrast sensitivity [CS] at 1.0 to 18.0 cpd). The subjects were divided into groups according to age and refractive parameters for analysis.
Results:
The mean spherical equivalent (SE), AULCSF, and CSF acuity of the test eyes were -0.94±1.53 D, 0.44±0.33, and 8.50±5.97 cpd, respectively. In the monocular qCSF comparison, the refraction sphere (RS) was the major factor correlated with qCSF readings (B=0.186, P =0.009 for AULCSF; B=0.543, P =0.019 for CSF acuity; generalized linear model). The three groups stratified by RS/SE (<-1.00D, -1.00D to 0D, and >0D) showed significant differences in CS at medium spatial frequencies (3.0 and 6.0 cpd; all P <0.05). In the low RS/SE group (within -1 to 0 D), the CS at 12.0 cpd was significantly lower than that in the hyperopia group (all P <0.05). Binocular qCSF readings were significantly correlated with those of the eyes with lower RS (all P <0.05).
Conclusion:
RS and SE are the major contributing factors of qCSF without refractive correction in children. The CS at medium spatial frequencies decrease significantly as the RS/SE increase. In low myopia children, the CS at medium and high spatial frequencies are significantly decreased, providing practical value in visual function screening in children.
More Related Videos
05:10Author Spotlight: An Automated Method for Assessing Visual Acuity in Infants and Toddlers Using an Eye-Tracking System
Published on: March 17, 2023
09:28Author Spotlight: An Accurate and Quantitative Approach to Study Visual Feature Selectivity of the Optokinetic Reflex in Mice
Published on: June 23, 2023