Undertow (1930)

Johnny Mack Brown stars as Paul who wants nothing more out of life than to take charge of a lighthouse Falling in love with Sally Mary Nolan Paul talks her into sharing his life as a lighthouse keeper Evidently staring into the beacon once too often Paul goes blind and its quite a chore for footloose Sally to remain faithful Making matters worse is the arrival of a doubledyed villain Robert Ellis who intends to have his way with the longsuffering heroine