My eyelids are lacking rather than the usual problem of too much skin and tissue

No. A standard blepharoplasty removes skin and/or  fat and as a rule gives you less upper eyelid skin to work with after surgery  than before surgery. If you are lacking in skin or have what is called lagophthalmos, I would  certainly consider doing nothing with your eyes that would add to the problem  such as a blepharoplasty. Correction of this problem unfortunately is not easy  and usually involves skin grafts and visible scars.  My recommendation is at this time that you do  not do a blepharoplasty