1 in 3 children worldwide is now nearsighted, study shows -CNN

[Peter E. Tencza O.D.]

So if anyone in the family tree has myopia it's genetic?

" iT IS IF i SAY SO!"

 

[Joe DiGiorgio O.D.]

Michael says No… he’s got his family to prove otherwise.

Agree. Mike has strong evidence to the contrary.

 

[Joe DiGiorgio O.D.]

No, you may have g parents and even ancestor genes to muddy the waters. My son was on near point devices for 22 years and has the same high myopia as I. Proving genetics at work and dominant. Or he would be -10.

It could be that back in the day of hunters and gatherers, myopes just died. So natural selection killed off all the myopes, and all breeders did not have myopia.

 

[h.c. jang]

It could be that back in the day of hunters and gatherers, myopes just died. So natural selection killed off all the myopes, and all breeders did not have myopia.

Or it could be back in the day people didn’t read because there were no books.

 

[William R. Hall]

Since genetics supposedly dictates myopia incidence in a family phenotype, wonder if the carrier's genotype is skewed to one gender than the other.

 

[h.c. jang]

Since genetics supposedly dictates myopia incidence in a family phenotype, wonder if the carrier's genotype is skewed to one gender that the other.

Women were gatherers, men hunters so you’d expect more females to be myopic.

 

[David Gregory Luce]

Since genetics supposedly dictates myopia incidence in a family phenotype, wonder if the carrier's genotype is skewed to one gender that the other.

Not sure but here are some numbers, looks like females have it by a small percentage.

https://www.nei.nih.gov/learn-about...-and-statistics/nearsightedness-myopia-tables

 

[Joe DiGiorgio O.D.]

Not sure but here are some numbers, looks like females have it by a small percentage.

https://www.nei.nih.gov/learn-about...-and-statistics/nearsightedness-myopia-tables

I will look at that link, but I would speculate that more females get regular eye exams.

 

[h.c. jang]

I will look at that link, but I would speculate that more females get regular eye exams.

Pretty sure they correct for that.

 

[David Gregory Luce]

Pretty sure they correct for that.

And how many myopic males do not have an eye exam at least once a decade or so

 

[Joe DiGiorgio O.D.]

And how many myopic males do not have an eye exam at least once a decade or so

Yes, they stay on a tight schedule, whether they need it or not.

 

[h.c. jang]

And how many myopic males do not have an eye exam at least once a decade or so

Don't think they look at exam records from patient visits to get the prevalence numbers. At least I hope not. You'll get lots of confounding data, not just male vs. female but economic status, age, current refractive status just to name a few. So "females are more likely to get eye exams" shouldn't be consideration.