An alleged burglar who broke into a blind, 90-year-old man's house and stole the war veteran's medals and his dead guide dog's ashes has been arrested.

Police say the 37 year old allegedly smashed a rear window of the Livingstone Street house and gained entry about 11am on Friday.

The robber was confronted by the blind sole occupant but continued to rummage through the World War II veteran's property even after he collapsed on the floor, a Victoria Police spokesman said.

The elderly man was able to activate a pendant alarm while on the ground.

"After gathering items throughout the house including WWII medals and the ashes of the blind man's deceased guide dog, the offender fled on foot," sergeant Kris Hamilton said.