Laser eye surgery. I asked because I've heard that a lot of people who have had laser surgery loose quite a bit of their night vision for some reason. Sorry if that was a personal question.
I had Lasik done 6 years ago. My pupils dilate to 8mm when it gets dark. The doctor had prosthetic lenses put in that have a coating that cuts down on the glare. He was afraid that I would have too much light hitting my eye through my pupils and it would cause a glare problem. I still have to wear sunglasses during the day. I never wore them when I was wearing glasses. I was 47 when I had the Lasik procedure done. If anything, it has improved my night vision because I don't need corrective lenses (glasses) to assist in focusing a sharp image.
