I have (as far as I know) perfect eyes. Around bright objects there is a slight halo, best compared to the one you see in video games around streetlights at night. It's much smoother than the one in the illustration in the article and slightly less bright. Bright stars show as dots with tiny lines coming from it with different lengths. Really tiny but still visible. Less bright stars show as infinitely small dots.
Ask a doctor about that. Preferably, not the one who performed the surgery.
As far as I know, there are no halos if you really have perfect vision. Cataracts and minor vision problems (such as a small amount of astimatism) will cause halos, even if the subject claims to see fine otherwise.
If you are doing such a poll, it would be helpful to ask, along with the presence of halos, when it was their last visit to an optometrist. If you believe you have perfect vision, you are not going to see one (even though periodic visits to an eye doctor are indicated, for checkups).
