I have had a 20/20 vision all my life up till 2 years ago when my eye sight has deteriorated much. I now have both short and long sightedness with astigmatism to boot.
And in these two years, I have had three pairs or glasses but all three have gave way to my carelessness and rough use. I have just made another pair and I hope it will last as long as it lasts for other people. My hubby has been wearing his for the last 7 seven years!
I also got curious about the invention of eyeglasses and found this article on Timeline of Glasses.