I find night sights to be a distraction, rather than a help.
They rivet my eyes, and take my attention away from my target.
If it's too dark to see your sights, can you be certain of your target? Maybe it's your child, or your wife, rather than a burglar.
If it's light enough to see your adversary well enough to identify him, it's light enough for you to see your sights.
If your sights are hard to see, practice doing short-range shooting using only the silhouette of the rear end of your pistol. It works extremely well.
If you can see your sights, remember that you really need only focus on your pistol's front sight. Its rear sight, and your target, can remain blurred.
Make sure that your lens prescription permits this. A brighter front sight won't help, if it's still blurry.
No gimmick or miracle cure will absolve you from the need to practice, to achieve, build, and retain your shooting skill.
I believe night sights to be merely a gimmick.
However, I also believe that a flashlight, judiciously used, will be of immense value.
But that's just me.