Petunia's Eyes

[karen]

No: HPFGUIDX 169789

To get right to the point, the one part of all the Harry Potter books 
that has always struck me was in book 5 when JKR stated that 
Petunia's and Lily's eyes were very different.  For some reason that 
sentence stuck out to me, more than any other, as a clue and I have 
not forgotten it.  I have asked numerous friends what they thought of 
it and no one seemed to have any good answers for me so I let it 
slide- forgotten until today.

Today I was reading what JKR said about DH and this is one thing she 
said:

"you might have got the impression that there is a little bit more to 
Aunt Petunia than meets the eye, and you will find out what it is.  
She is not a squib, although that is a very good guess.  Oh, I am 
giving a lot away here.  I am being shockingly indiscreet." 
http://www.the-leaky-cauldron.org/#book:7

After reading that, I went back and tried to figure out what she may 
have said that was giving a lot away and the word "eye" stuck out to 
me.  This reminds me again about that sentence in book 5 saying Lily 
and Petunia's eyes were "very different"...  any ideas?  It's killin' 
me you guys.  Honestly, I need some thoughts.