I HAVE A PAIR OF BURBERRY SUN GLASSES THAT SCREWS KEEP COMING OUT OF. I NEED TO KNOW WHAT CAN BE DONE .I HAVE TRIED PUTTING SCREWS IN BUT THEY KEEP COMING OUT.

You need to put Loctite on the threads and tighten gently. Super clue will void your warrant with the manufacturer if anything else was to happen to your sunglasses. Warranty is voided when you tamper with glasses...Loctite is what optical labs use on loose screews

Hi!

I had the same problem with my sunglasses. Because I will never need to unscrew those screws again, I decided to put a little drop of super glue on the screws before I tighten them.
That means I have partially unscrewed the screws, but not remove them completely, put the little drop of glue on the screw using the tip of one toothpick and then tight the screw.
One thing to be careful: do not drop the glue on the lenses...

Please let me know if it was helpful for you.

Best regards.

Sounds like the threads worn pop the screw in and with a pin head apply superglue otherwise take into any glasses shop and they should be able to help please give thumbs up thanks