Abstract
This study characterizes differences in human ERGs based on ocular pigmentation. Light- and dark-adapted luminance-response (LR) series for a-, b- and i-waves and light-adapted oscillatory potentials (OPs) were recorded in 14 healthy volunteers (7 blue-eyed Caucasians; 7 brown-eyed Asians, aged 20–22 years). Amplitude interpolations were by logistic growth (Naka-Rushton), Gaussian or the combined ‘photopic hill’ functions. Implicit times (IT) for dark-adapted a- and b-waves, and for light-adapted a-, b- and i-waves were earlier in the blue-eyed group than in the brown-eyed group across all flash strengths (P <0.05).
Original language | English |
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Pages (from-to) | 135-146 |
Number of pages | 12 |
Journal | Documenta Ophthamologia: the Journal of Clinical Electrophysiology and Vision |
Volume | 121 |
Issue number | 2 |
DOIs | |
Publication status | Published - 1 Jul 2010 |
Keywords
- optometry
- electroretinograms
- vision sciences