Normative values of the amplitude-latency parameters of the visual evoked potentials (VEP) on the reversal checkboard pattern in 7-14 y.o. children without visual impairments
A.A. IVLEVA, D.I. KOSHELEV
Federal State Institution Russian Eye and Plastic Surgery Center, Ufa, Russian Federation
Contact details:
Ivleva A.A. – Junior Researcher of the Laboratory of Neurophysiology of Vision
Adress: 67/1 Zorge St., Ufa, 450075, Russian Federation, tel.: (347) 293-42-11, e-mail: annaviv93@gmail.com
Objective. To investigate the change in the amplitude-latency parameters of the visual evoked potentials (VEP) on the reversal checkboard pattern depending on the size of the pattern elements in children without visual impairments.
Material and methods. The study involved 50 children aged 7-14 years. VEP was registered binocularly from the distance of 1 meter. A sequential series of checkboard patterns with a check size of 240, 96, 48, 24 and 12 arcminutes was used as a stimulus.
Results. The amplitude and latency of the N75-P100 VEP complex increased with a decrease in the size of the pattern checks. The main descriptive statistics for the studied group were given.
Conclusion. The obtained data can be used as normative values in clinical studies of the VEP on a reversal checkboard pattern in children with visual impairments.
Key words: visual evoked potentials, normative values.
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