Abandoned puppy guided and protected his blind sister until they were both rescued

A greyhound puppy in Spain refused to leave the side of his blind sister and protected and guided her until the pair were rescued.
The pair of downtrodden pups were discovered by residents at a battered women’s shelter in Navalcarnero near Madrid when it was noticed that one refused to leave the side of the other and appeared to be guiding her through the fields.
It emerged that the male dog, who is darker in color, was permanently at the side of his lighter-colored sister as she took tentative steps through scrub-land searching for food. "On approaching the dogs, it was possible to see that one of them had a cloudy veil covering the retina of the eyes," explained Nacho Paunero, the head of El Refugio, a dog shelter charity in Madrid.

YouTube link.

"Her brother seemed to be fully aware of the blindness of his sister and would not be separated from her for a single second, he was protecting and guiding her," Paunero said. The dogs were given the names Pisper and Blinder and have now been taken in by the charity, which is hoping to re-home them together. "The dogs have been seen by the vet and the blindness is most likely caused by an infection," said the charity. "With the right treatment we hope she will make a full recovery."