I recently added a Crimson Trace laser to my LC9s and love it. I have 20/20 in my left eye and 20/70 in my right. As my eyes age, of course things are not what they used to be at night. So I'm thinking about swapping out the stock sights. My primary use (hoping to never have to use) would be home defense involving waking from sleep and expecting groggy vision coupled with the aging focus. Don't know if you catch my drift. Yes? However, is this really necessary since installing the laser, and if it is what would you "older" folk recommend from an experienced point of view?