Originally Posted by luvbostonxo2's

those soft lenses with ultra high water content (anything higher than 55%) are no longer used due to lens spoilage issues with such a high h20 content. To imagine people wore them for up to a year or longer.

They were great for oxygen transmission but the high h20 content attracted deposits, lipids and whatever that was in the air etc. Also peope slept in these lenses as well.