[Oscillatory potentials in human electroretinography during adaptation to light and dark].
In 20 healthy subjects no changes of the peak-latencies of the four wavelets of electroretinographic oscillatory potentials (OP) was found in the course of dark- and light-adaptation. On the other hand, their peak-to-peak amplitudes and dominant frequencies diminish significantly with rising levels of light adaptation. No single OP wavelet was affected by these changes selectively. The OP peak latencies are well suited for clinical diagnostic testing owing to their stability and low variability. On the other hand, because of the great interindividual variability of the peak-to-peak amplitude values of the OP a better clinical tool appears to be a sum of their amplitudes.
Peregrin
J
J
Ocní klinika FN, Hradec Králové.
Svĕrák
J
J
Kremlácek
J
J
D000221:Adaptation, Ocular / Q000502:physiology*; D000293:Adolescent; D000328:Adult; D002648:Child; D003623:Dark Adaptation / Q000502:physiology; D004596:Electroretinography; D005071:Evoked Potentials; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010775:Photic Stimulation; D011930:Reaction Time
Oscilacní potenciály lidského elektroretinogramu v adaptaci na tmu a na svĕtlo.