You get them after you save the last spy.
It's in the bum tree land. There will be a cherry bomp. Click it. You will have to push it to the leaf. It will bounce up. You will need to use your bowtie to you up too. When you get to the most up,there will be another agent. Put the cherry bomb in front of agent's cage. Then she will give you the vison goggles.
you save the last spy and she will give you a pass code and the goggles
you first get the spy in the green garden room and the agent (in the cage)gives you the night goggles.
You can copy the green goggles worn by Sir Rebral, which are similar to the goggles on Spy Island, except that they have no function at all.
u can see lasers
save the girl on top of the building
You use them to see lasers.
You can get the disguise eyeglasses at Spyglass Eyewear. But the "spy goggles" that see lasers are not available there. You will have to rescue the Third Spy in order to get the goggles. (see related question)
You have to find the third agent. She will give you the goggles and the last password clue.
You have to get the goggles from a spy.
When you save the 3ed spy she will give you these goggles that will help you with the lasers. Good luck spy. ;) .
u have to save the girl frist