What procedure would tighten the skin on the temples? And would this elongate and slant a persons eyes more?

There are a number of different techniques to address this area however without pictures it is difficult to assess your goals. I would recommend that you schedule a consultation with a plastic surgeon to discuss your options. 

It
would be difficult to determine this without seeing you for a consultation.Without seeing what areas you are talking
about, it is hard to know what technique would be best to treat the area.You should discuss your concerns with your Plastic
Surgeon.

Without a photo it is difficult to accurately assess your question, however, any procedure where excess skin is removed would tighten the area.  Either a facelift with temoral extension or perhaps browlift would accomplish this.