For eyelid lift, is it better to have staples or sutures? What type of suture has less chance of causing hypertrophic scars?

In my experience staples are NEVER used for eyelid lifts.  As in NEVER EVER.  Not ever.  Never.

I have never heard of anyone using staples for eyelid surgery and only fine sutures should be used. Hypertrophic scars would be extremely rare as upper eyelid skin is very thin and heals well. 

Many thanks for posting your question. The eyelid skin is very skin and usually heals with almost imperceptible scars. Fine stitches are normally used, and these are removed within the week of surgery. Whilst not impossible, it is very rare to get hypertrophic or keloid scarring of the eyelid.I hope this reassures you

Thank you for your question. Transconjunctival blepharoplasty is preferred when possible because there is no suture in the skin and patients can often return to normal social and work activities within a few days. This procedure can only be done if there is good elasticity to the lower eyelid skin. I suggest that you move forward and consult with a board certified facial plastic surgeon.
Best wishes,

Staples are not used for upper or lower eyelid surgery.  Typically a suture that is  not  reactive is  used in the upper lid and removed at 5-7 days.  In lower eyelid surgery, a combination of absorbable suture under the lashes may be used, but a permanent suture laterally to help support the tissue is preferred, also removed at approximately 7 days.  Within the scalp such as with a browlift, staples are often utilized and  these areas are not prone to keloid formation