Does anyone know where I can give old specs to charity?

I have like 10 pairs of old specs hanging around and I would like to donate them to charity. Does anyone know of a charity I could give them to? TIA!

I was going to post this same question!  How bizarre!

Though I've only got a couple old pairs. 

Vision Aid Overseas will accept them - they have an address in Crawley listed on their website.

Or there is the Second Sight Project.  Strangely, it looks like they expect you to put in £1 when you donate your glasses...

I've taken them into Vision Express here in town - they collect them for Vision Aid.

Cool! Thanks Mrs R, we've got a Vision Express in town.  I'll drop them in next time I go.

The last time I got a new pair of specs (about a year ago) at Costco they had a donation box for old specs.  I can't remember who they were collecting for and not sure if this was specific to my Costco optician.