O God, who art the Father of lights, and with whom there is no darkness at all: We thank thee for the good gift of sight which thou hast bestowed upon us, and we pray thee to fill us with thine own compassion for those who have it not. Direct and prosper the efforts that are made for their welfare. Reveal to them by thy Spirit the things which eye hath not seen, and comfort them with the hope of the light everlasting, to which, of thy great mercy, we beseech thee to bring us all; through Jesus Christ our Saviour.