Authors:

You can't see anything properly while your eyes are blurred with tears.

C.S. Lewis (2014). “A Grief Observed Readers' Edition: With contributions from Hilary Mantel, Jessica Martin, Jenna Bailey, Rowan Williams, Kate Saunders, Francis Spufford and Maureen Freely”, p.25, Faber & Faber
You can't see anything properly while your eyes are blurred with tears.