When and why did it become the convention that blind people would wear dark glasses? Would the purpose be to hide the eyes or to act as a signifier of blindness? Is it something that is done less these days and what are the reasons why?
posted on Aug 10, 2008 - 12 answers

Why did I experience temporary vision loss after exercising at the gym? [more inside]
posted on Jun 4, 2007 - 19 answers

WTF-Filter: The left side of my visual field is being overtaken by what can only be described as... a crawling anomaly. If you imagine the sorts of random colors and shapes you see under certain circumstances with your eyes closed, or in the dark, it's like that... except there is also a feeling of movement... as though everything is sort of undulating kaliedscopically. The anomaly tracks along with my eye movement... so I can't look at it... it's always in my periphery. [more inside]
posted on May 31, 2007 - 27 answers

What if most people were born blind, and seeing was rare? [more inside]
posted on May 27, 2005 - 43 answers

This has puzzled me for a long time. People who've been blind since birth - how can they dream images? Do they? Without a visual history for reference, how can it happen?
posted on Jan 31, 2005 - 7 answers