A scuba diving mask with corrective lenses comprising a frame with a pair of rings connected by a bridge, each of the rings having an internal flange on which the lip of a flexible skirt, a corresponding lens and a lens-retaining collar rest. The collar is attached with a snap action to the corresponding ring. A seat is formed in the bridge substantially in the lying plane of the lenses and extending laterally to the upper internal portion of the two rings. The seat contains a locking plate slidable between two opposite end stroke positions, a locking end position and a release end position respectively, when the locking plate is in the locking position the lateral sides of the locking plate extend inside the rings and are engaged in corresponding notches provided in the upper internal rim of the lens-retaining collars.