The issue I have is that the sights are becoming so dull that I can't really see them any more. The front sight is not as bad as a rear two.
Closer inspection shows a sort of crazing in the glowing part of the sights. I have no idea how they got to look like this but I do know the gun has never been dropped but it has had about 1000 rounds through it since I got it.
I always thought that these sights had a 10 year life expectancy so I am a little disappointed if they need replacing already.

Has anyone seen anything like this before and is the only solution to replace them?

Edit : I shall try and take a close up picture of the sights to show the crazing.
Edit2 : I have just been searching the internet and it looks like the issue could be that the vials are broken, possibly because the dovetail is too tight. Strange, but it looks like a new set are in order.
I guess my next question is, if I am going to replace the sights what do people recommend for an everyday carry weapon's sights?