[Critical frequency of flashes fusion in differential diagnosis of vision disorders in children]

Area of Science:

• Ophthalmology
• Pediatric Neurology
• Neuroscience

Background:

• Visual processing speed is crucial for ocular health assessment.
• Critical Flicker Fusion Frequency (CFFF) measures the highest rate of visual flicker perceived as a continuous light.
• Understanding CFFF in pediatric populations is vital for diagnosing visual pathway disorders.

Purpose of the Study:

• To evaluate the diagnostic utility of the CFFF-D device in children.
• To assess CFFF in children with various retinal and optic nerve conditions.
• To identify potential correlations between CFFF values and specific ophthalmologic diagnoses in pediatric patients.

Main Methods:

• Utilized the CFFF-D device, a tool recommended for clinical trials by the Russian Federation's Ministry of Health.
• Examined a cohort of 213 children, including those with central/peripheral retinal abiotrophy, optic nerve atrophy, refractive errors, dysbinocular amblyopia, and healthy controls.
• Measured Critical Flicker Fusion Frequency (CFFF) in all participants.

Main Results:

• The CFFF-D device demonstrated reliable performance in assessing visual processing in children.
• Significantly altered CFFF values were most pronounced in children diagnosed with optic nerve atrophy.
• CFFF measurements showed potential as a biomarker for visual pathway dysfunction in pediatric cases.

Conclusions:

• The CFFF-D device is a reliable tool for diagnosing visual processing deficits in children.
• Optic nerve atrophy is associated with the most substantial changes in Critical Flicker Fusion Frequency (CFFF).
• CFFF assessment can aid in the early detection and diagnosis of visual pathway abnormalities in pediatric ophthalmology.