Not true
True:
https://www.visualaidscentre.com/long-term-light-sensitivity-after-lasik/
https://www.theraspecs.com/blog/light-sensitivity-after-lasik-surgery/
Large pupils. If your pupils are large, especially in dim light, LASIK may not be appropriate. Surgery may result in debilitating symptoms such as glare, halos, starbursts and ghost images.
https://www.mayoclinic.org/tests-procedures/lasik-eye-surgery/in-depth/lasik-surgery/art-20045751
During standard LASIK surgery, the area of the eye that will be lasered is usually around 6 millimeters in diameter. Ideally, the size of your pupil when dilated (narrowed) should be 6 mm or less. If it dilates to 7 mm or 8 mm, you will likely have unwanted glare, halos, or starbursts around lights at nighttime.
https://www.verywellhealth.com/should-you-have-lasik-3421961
I almost had the procedure, but due to shingles always present on my left temple near my eyes, even had it on the tip of my nose hours before the laser cutting commenced.
I’m very light sensitive too and heard that the worst effect can be diminished night vision, sometimes light sources will have a starburst pattern. Actually worst would be blindness, only 1 eye at a time just in case...