I haven't done it to my Kahrs but I have done it to a couple 1911's. Old eyes here too. It really does seem to help.
One thing I just kind of figured out is a black rear and something bright on the front with the wide notch. I can see that way more better.
I put a brass bead in my CBob front sight and it worked for awhile but not bright enough now. Even when I polish it up.
Not paying for Gold and not sure it would be any better really. White paint might be the best.
In Memory of Paul "Dietrich" Stines.
Dad: Say something nice to your cousin Shirley
Dietrich: For a fat girl you sure don't sweat much.
Cue sound of Head slap.
RIP Muggsy & TMan
"If you are a warrior legally authorized to carry a weapon and you step outside without that weapon, then you become a sheep, pretending that JOCKO will not come today."