Wednesday, October 22, 2008

Myopia and My Mother

In recent comments on eyesight my children have mentioned how their eyesight is so much better than mine. I am very nearsighted. It is a condition known partly to be environmental (i.e. reading a lot) and partly inherited. If inherited, why is it that I am myopic but my children are not? A remarkable article recently published shows that myopia is more inherited from the mother. It derives from interaction of chromosome 3 (inherited from both parents) with the mitochondria (inherited solely from the mother). Thus it is more Lona's contribution that has influenced my children's eyesight than mine. Lona is nearsighted but not severely so. She read a lot so it is only natural that her eyesight might not be the very best.

I must have some good eyesight genes though, considering that Jon has such good eyesight. Those passed on by me interacted with Lona's to produce my kids good eyesight.

2 comments:

Lynnis said...

plus we have healing powers. Søren and Piri both had glasses but don't need them anymore.

Piri Jenkins said...

Mine were always optional. I think I had 20/30 vision, now its back to 20/20.