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Tigeria · Aug 25, 2017 9:37 AM

What determines eye color and do blue eyes have any detrimental effects?

ObsidianKitsune · Aug 25, 2017 9:43 AM

There are no detrimental effects due to eye colour.
The base colour seems to be brown.
Splash causes blue eyes.
Champagne and I think pearl causes green eyes.

Tigeria · Aug 25, 2017 9:46 AM

Thanks! I was rerolling this boy and his eyes kept changing from brown to blue so I was curious.

Tig Golden Space Rock

SandycreekFarm · Aug 25, 2017 4:09 PM

Homozygous Cream always causes blue eyes.

OndowaStables · Aug 25, 2017 4:15 PM

It's the splash causing your foal to have blue eyes sometimes when you reroll him. Splash gives a chance of blue eyes, but whether a horse gets them or not is determined by a random part of the image generation.

Senlac · Aug 27, 2017 4:41 AM

In real life, some breed societies look down on blue eyes and mark horses down at shows for them as it is seen as "not desirable". Luckily, that doesn't happen in this game.

StarfireAcres · Aug 27, 2017 11:26 PM

Really that's weird I like blue eyes the very best on horses then hazel then brown. What is the judges reasons for marking a horse down for blue eyes?

Timber · Aug 28, 2017 12:36 AM

From what I understand, blue eyes in animals are often linked to genes that can cause decreases in hearing or sight ability. So as not to damage the breeds genetics further, some breeding clubs or societies will mark them down or not allow them at all so as to dissuade serious breeders from seeking out these that trait.

Ammit · Aug 28, 2017 3:27 AM

Yes, if you spend anytime around double dilutes for example you notice they are always squinting. Blue eyes can cause some issues.

GallifreyanAngel · Aug 28, 2017 3:30 AM

I think only splash is linked to deafness and blue eyes? And even then, it depends if the lack of pigment occurs in the ear canal or not, so its bit of a gamble. I didn't think that blue eyes affected sight in horses, but I do know that the pink skin of the double dilutes is more susceptible to skin cancers. I didn't realise there were breeds societies which actively prevented/limited registration of blue eyes horses

StarfireAcres · Aug 28, 2017 2:16 PM

Humm I didn't know blue eyes could be a cause of some health problems. I know if an animal that has a pure white coat it could cause blindness and could be deaf and meaning it has a white coat like an albino the pink skin could get Sun burnt more easily and it could cause cancer

Ammit · Aug 28, 2017 2:22 PM

Several genes can cause eye issues. Appaloosa and silver in particular can cause major eye issues.

RipshinCreekFarm · Aug 28, 2017 6:06 PM

Some people have their blue eyed with pink skin horses tattooed with an "eyeliner" with the thought it would reduce glare from the light skin into the blue eyes, therefore reducing the chance of eye cancer. Vets sedate them and tattoo artists with nerves of steel tattoo them. I know a lot of people who keep fly masks on religiously, and grease paint them when they don't have those. Some buddies of mine have horses that look like they are ready for football every time they trail ride!

ObsidianKitsune · Aug 28, 2017 11:06 PM

Senlac mentioned breed societies, so I can relate to this as I do a lot of breed showing in the dog world. I mainly do Poms and Cresteds, and with every dog they have a strict standard that they had to adhere to. For example, Poms can't have blue eyes, only solid colours or sable with no tan or cream/white markings ((In NZ)), and their nose must be black unless they are chocolate, in which case they can be self coloured.

Most of these rules came about through years and years of breeding these breeds, so their genetics should be predictable. But then again, with the poms, if a colour is within a certain amount of generations behind a pair, their babies could have that colour!

StarfireAcres · Aug 28, 2017 11:28 PM

RipshinCreek my paint mare had blue eyes and one eye had black eyeliner it was natural not tattooed it was so cool it was my favorite thing about that mare

kassierae · Aug 30, 2017 10:06 AM

Deafness is related to Splash 1&2, caused by lack of pigment in the INNER ear.

Base color can have an affect on eye color, such as with the case of double dilutes, champagne and homozygous pearl or psuedo double dilutes(cream+pearl). Blue eyes are thought to have many causes, frame and splash being two of them. Some horses with blue eyes have untestable or bloodline specific white spotting mutations. I have a horse with a blue eye, she doesn't have any issues with it.

Homozygous LP also causes CSNB, or night blindness. All homozygous LP horses will have this. Appaloosas are also prone to uveitis.

Homozygous silver can cause MCOA, most commonly seen in Rocky Mountain horses.

StarfireAcres · Aug 30, 2017 1:34 PM

Dogs can be deaf and or blind from having a solid white coat or a lot of white in their coat.

RipshinCreekFarm · Aug 30, 2017 1:56 PM

Quick question about the night blindness and moon blindness and LP. Does this apply to all breeds that carry LP, such as minis, or only to appaloosas? I've always wondered.

Ammit · Aug 30, 2017 2:28 PM

Every single breed that has LP. It's the same mutation for all of them.

ObsidianKitsune · Aug 31, 2017 1:13 AM

I have no idea what MCOA stood for so I googled it...apparently it's the Marijuana company of America xD Had to add in horses to find out lol.

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