Double (homozygous) merles are highly likely to have blue eyes and a completely Merled dog (large areas of black or liver) is unlikely to have either of these traits. the more grey/diluted areas), the more likely they are to have blue eyes or a butterfly nose. The more dilution there is in the coat of a merle (i.e. Wall eyes, technically known as heterochromia, are when a dog has one blue eye and one brown or amber eye, and a split eye has some blue in it and the rest is brown or amber. Because of the random pigment loss, often merle dogs have "butterfly" noses (see nose page) and blue, wall or split eyes. Pigment around their eyes do not always have pink or red eyes like albino rodents do - lack of pigment or very diluted pigment often results inīlue eyes, as it does in albino humans). This sort of dilution causes blue colour in the iris (contrary to common belief, animals with no Random parts of the pigment, including the eyes and nose. The most common way is as a side effect of the merle gene. Three of these are linked with pigment loss in the coat. Genetically, there are four ways a dog can have blue eyes. The eyes of the second dog are paler and more of an amber shade. The striking shade shown by the first dog here is often referred to as copper. This English Springer shows very light amber eyes for a liver.Īlthough amber eyes most commonly occur on liver and blue dogs, they can also occur occasionally on dogs with black pigment. The pink/brown nose gives this dog away as a liver. Isabella (dd) Weimaraner, showing very pale eyes that almost match the shade of its coat. Liver dogs (bb) have amber eyes, and so do blue and isabella dogs (dd).Īmber eyes vary from light brown (overlapping with the lighter eyes sometimes found in black-pigmented dogs) to yellow, yellow-green or grey.
However, a number of genes can affect eye colour.Īmber eyes usually occur when the eumelanin produced by the dog is diluted or modified by the recessive genes in the B or D series. The default eye colour for dogs is brown:
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