i get your point, all i was doing was saying why it shines green or red, it also says that in yorkies the tapetum is normaly poorly developed small and high up in the eye, maybe if its a cotton yorkie you are more likely to have a orange or red glow as the tapetum is poorly developed like there coat but doesnt mean you can be certain of it. yorkies with a well developed tapetum have a green glow and maybe are more likely to have a better coat, maybe it could even be to do with in breeding or something like that. i wasnt saying you were wrong.