Besides the optical flare proper a large number of various optical phenomena are observed in the solar chromosphere and corona that obviously are related in some way or the other to the flare event. We may divide them into four different types: (a) Activation of filaments (or prominences when seen on the limb) preceding the optical flare. (b) Blast waves originating in the flare and traveling within large solid angles both into the corona as well as along the solar surface, giving rise to winking or disparitions brusques of distant quiescent filaments. (c) Prominence ejections during the flare (surges and sprays). (d) Loop prominences which start developing during the flare and proceed in the corona for hours after the chromospheric phenomenon has faded.