THE INVENTION RELATES TO A COATING FORMULATION FOR PREPARING A HYDROPHILIC COATING, WHEREIN THE HYDROPHILIC COATING FORMULATION COMPRISES A HYDROPHILIC POLYMER, A SUPPORTING POLYMER COMPRISING A BACKBONE AND AT LEAST 2 REACTIVE MOIETIES CAPABLE OF UNDERGOING POLYMERIZATION REACTIONS, A NORRISH TYPE I PHOTOINITIATOR AND A NORRISH TYPE II PHOTOINITIATOR.