Look at Lao history
The eyes of this Buddha used to have precious stones in them. Inside the crown of the Buddha lay valuable stones and jewelry. But when the Siamese invaded Laos in the late 1700’s, the Siamese knew from their own Buddhist culture that the Buddha statues would contain such gems and so cut off the tops of the heads of the Buddhas and scratched the stones out of their eyes.
This is all told to my by my guide, and so I’ve only searched the net a bit to find other bits of history to verify. If anyone knows of a good website on Lao history, please leave a comment. I’d like to learn more.