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[The transient PVEP acuity assessment for 2 to 5 years old normal children]
Yun-wei Fan1, Xiao-qing Li, Xiao-ming Yan
1Department of Pediatric Ophthalmology, Peking University First Hospital, Beijing 100034, China.
Insights
Transient pattern visual evoked potential (PVEP) acuity assessment is practical for young children. PVEP demonstrates reliable visual acuity in children aged 2-5 years, correlating well with standard measures.
Area of Science:
- Ophthalmology
- Pediatric Optometry
- Visual Neuroscience
Background:
- Assessing visual acuity in young children (2-5 years) presents challenges due to their limited cooperation.
- Traditional methods may not be suitable for very young or uncooperative individuals.
Purpose of the Study:
- To evaluate the practicality and reliability of transient pattern visual evoked potential (PVEP) for assessing visual acuity in normal children aged 2 to 5 years.
Main Methods:
- Visual acuity was measured using standard pattern acuity tests and transient PVEP-A in 179 children (355 eyes).
- PVEP-A was determined using horizontal gratings evoked potentials.
- Statistical analyses included chi-squared and rank tests, with logistic regression for comparing PVEP-A and pattern acuity.
Main Results:
- Both pattern acuity and PVEP-A increased with age, with PVEP-A values exceeding 3.4 c/d.
- A significant positive correlation was found between PVEP-A and pattern acuity (r=0.673).
- PVEP-A showed earlier development compared to pattern acuity in this age group.
Conclusions:
- Transient PVEP is a practical and reliable objective method for visual acuity assessment in young children.
- PVEP offers a valuable alternative for assessing visual function in pediatric populations, including those with handicaps.
Objective:
To evaluate the practicality of transient PVEP (pattern visual evoked potential, PVEP) acuity assessment for 2 to 5 years old normal children from September 2007 to January 2008.
Methods:
Pattern acuity and transient PVEP-A of 179 (355 eyes) normal children between 2 to 5 years were detected and analyzed. Pattern acuity data were got from test for single uncorrected eye with pattern acuity table. PVEP-A was measured by the horizontal gratings evoked potential, voyich were cognizable response. chi2 and rank tests methods were used to analysis. The value of PVEP-A was converted to international standard acuity, and then comparison to pattern acuity with Logistic regression method.
Results:
With the growth of age, pattern acuity was gradually increased and the value was greater than 0.4. The positive correlation also existed among PVEP-A and age, PVEP-A from test children was all greater than 3.4 c/d. The analysis result of rank regression was P<0.01, that weaned PVEP-A difference among four groups had statistics significance. The correlation coefficient of PVEP-A with pattern acuity was good (r=0.673). The difference of PVEP-A and pattern acuity between two eyes was correlated(r = 0.664). The result also pointed out PVEP-A growth was earlier than pattern acuity among 179 children.
Conclusion:
Stabilization and reliability PVEP is a good objective visual assessment for younger and handicapped children.
