those artifacts are not uncommon from what i know - especially star like haloes around bright lights. part of it is down to how your retina works and part of it

those artifacts are not uncommon from what i know - especially star like haloes around bright lights. part of it is down to how your retina works and part of it down to the focusing of the light by the cornea, lens and through the humours... its not reasonable to expect all of this to work perfectly, and it has design flaws in terms of bleeds and blooms appearing in the final image. the halos are because of how the photoreceptors work everyone gets lingering spots of 'colour' when you look at a bright light then look away - note that these bloom out as well, and as they fade they spread for the same reasons. its the surrounds of the 'correct' receptor sucking up the excess energy thats been pumped into that area of the retina coupled with the impossibility of consistently perfect focus