Maj. Luca Parmitano (NA1SS) speaks to students at Warren County Technical School, Washington, NJ, USA at 1408 UTC on 04 November 2013 via KC2WT. He answered the following questions in the recording:

1. Since astronauts have perfect vision, is it known whether there is any effect lack of gravity would have on an astigmatism? Do changes to the pressure on the vitreous humor cause any changes to the eyesight of people with perfect vision?
2. What, if any, changes in mental status can be attributed to the changes in the fluid in the sulci of the brain?

Audio File: 

Luca Parmitano (NA1SS) - Warren Co. Tech School - 04 Nov 2013