Friday, March 5, 2010

Braille Books and the Human Eye

Savannah has been starting the basics of reading braille for about a year now. Her teacher finally has her tracking the pages correctly and holding the book correctly. I finally finished my beginners braille course through the Hadley school (highly recommend the school), and we are both ready for a little challenge. I found through one of my group email lists about a program called seedlings that mails out two braille books to vision impaired children each year, so I signed Savannah up. Then I found a couple more groups that do the same thing, so hopefully we will get a couple of braille books going for our own mini-library. We will have to wait and see. I also found a section at the public library with braille books, but I haven't had time to look at them much. Usually I am a little too busy chasing a certain someone.....
Since I finished up the beginners braille course through Hadley, I started a new course called the human eye. It is a real in depth look at the eye, the functions of each part, and common diseases or issues that can crop up. I have only finished the first lesson, but have glanced ahead and the textbook covers each of the issues that we have / are facing with Savannah. It will be interesting to go through the course even though it goes way to far in depth for most people. Here's an example: the Zonnules of Zinn. Never heard of it? Well, it is the tiny ligaments that tautly hold the lens of your eye in place. Whenever your eyes have to refocus from near to far and back again, it is the responsibility of those ligaments and the muscles of the ciliary body (which also makes the fluid for the front part of the eye) to pull on the lens and change its shape, aka accommodation. See, more in depth view of the human eye then we ever did in school..... but you gotta learn this stuff..... okay so maybe your off the hook, but not me.

1 comment:

Grandma said...

Very interesting and congratulations for learning alongside Savannah! I didn't know about those Zinn ligaments either!