Next b-day is my 63rd, so I hear you about trying to see those tiny threads.
I have extra light(s) around my sewing machine. You will get many suggestions on un-sewing. IMHO the easiest (for me) is to flip your seam over (bobbin side) and pick/rip about every 4th-6th stitch, then flip back over and pull out one long thread. My FAVORITE seam ripper is the white clover seam ripper.