Figure 1
From: Multiple congenital ocular anomalies in Icelandic horses
An Icelandic horse with the Silver coat colour. This horse is genetically black but the hairs have been lightened as a result of the PMEL17 mutation. This horse is homozygous for the mutation and displayed the MCOA-phenotype. Note that the pupil is poorly dilated even though a mydriatic has been applied repeatedly one hour before the photo was taken.