What causes blue eyes in children?

What causes blue eyes in children?

The laws of genetics state that eye color is inherited as follows: If both parents have blue eyes, the children will have blue eyes. The brown eye form of the eye color gene (or allele) is dominant, whereas the blue eye allele is recessive.

What conditions can cause blue sclera?

Bluish sclera is associated with osteogenesis imperfecta, Marfan’s syndrome, Ehlers Danlos syndrome, Blue sclera syndrome (Van der Heave syndrome), incontinentia pigmenti, and many other inherited conditions. [1] The sclera is involved bilaterally in all these conditions and the unilateral appearance is a rarity.

Is there treatment for blue sclera?

Still now, there is no cure of this disease. Genetic counseling is recommended for couples considering pregnancy if there is a personal or family history of this condition. Blue sclera may be associated with multisystem disorders so good history taking is most important.

Can a child have blue eyes if one parent has brown?

If both of you have brown eyes, then there is generally a 25% chance that the baby will have blue eyes if both of you carry the recessive blue-eye gene. But if only one of you has a recessive blue-eye gene, and the other has two brown, dominant genes, then there is a less than 1% chance of the baby having blue eyes.

Can 2 parents with blue eyes have a child with brown eyes?

Because the two genes depend on each other, it is possible for someone to actually be a carrier of a dominant trait like brown eyes. And if two blue eyed parents are carriers, then they can have a brown eyed child.

Who gets blue sclera?

Can a brown eyed father and blue eyed mother have a blue eyed child?

So, to try and clarify things, let’s think about this situation. Someone with brown eyes may be carrying one blue allele and one brown allele, so a brown-eyed mother and a blue-eyed father could give birth to a blue-eyed child. Now mix in a third green allele, which is dominant to blue, but recessive to brown.