An initial corneal negative deflection caused by the rods and cones of the outer photoreceptor layer. It is a measure of the photoreceptor wave. The A-wave is slower and larger in a dark-adapted individual.
An initial corneal negative deflection caused by the rods and cones of the outer photoreceptor layer. It is a measure of the photoreceptor wave. The A-wave is slower and larger in a dark-adapted individual.
