All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.
Every human being, whether he is a Muslim or a non-Muslim, may be affected by an evil eye.
The Hadeeths that confirm that one may be affected by an evil eye and that it is true are not specific to a Muslim only. The reality also proves that a non-Muslim may be affected by an evil eye.
Allah knows best.