Why astronauts lose vision in space-and how research on SANS could lead to solutions for both space crews and patients on ...

Feeling dizzy or experiencing blurry vision when you stand up can be alarming. ... pause before standing. ... Aim for at least 8 glasses of water daily, ...

Having never worn glasses before, Khan initially experienced persistent eye irritation, ... Blurred or fuzzy vision, especially in the centre of their field of vision.