[Measurement of light sensitivity with ultramicro-test field].
D000221:Adaptation, Ocular; D003624:Darkness; D006801:Humans; D008027:Light; D012160:Retina / Q000502:physiology*; D014787:Vision Tests / Q000295:instrumentation; D014785:Vision, Ocular / Q000502:physiology*; D014796:Visual Perception