Eyeglasses are an essential tool for thousands of people across the globe. Unfortunately, glasses didn’t always exist, which caused difficulties for those in the ancient past with poor vision. However, the Romans made significant steps towards the correction of vision problems when they discovered that different thicknesses of glass could cause changes in clarity when looking through them. Because of this discovery, eye health has advanced, first from glasses to contacts and now from eyewear to surgical options such as LASIK.
Compared to a hundred years ago, it seems as though almost everybody is near-sighted these days. Is that because of increased close work stemming from more years of formal education?
Long time before the Romans the magnifying lenses were in use.
https://www.academia.edu/467038/The_Use_of_Magnifying_Lenses_in_the_Classical_World
https://www.journals.uchicago.edu/doi/10.2307/505216
Fascinating
As I peer through my blurry reading glasses 😃
On the front cover of 'The Crystal Sun' by Robert Temple, there is an image of a very ancient Greek... looking through a telescope...
Compared to a hundred years ago, it seems as though almost everybody is near-sighted these days. Is that because of increased close work stemming from more years of formal education?