Harry's glasses: Protection?

[charme]

No: HPFGUIDX 115362

charme:

Has anyone else noticed the references to Harry's glasses being "missing"
when he experiences something mental I'd loosely coin "unusual?"  For
example, a recent event was in OoP where Harry awoke from the LV's
possession in the DoM:

"Harry was lying facedown on the floor, his glasses gone..."

I also note where several times Harry awoke after having a dream or other
more "vivid" likewise experience and had to put ON his glasses. Note this
from JKR's 2000 Reader's Digest Article:

"She's thrilled with Stephen Fry's taped version of the books, outraged that
an Italian dust jacket shows Harry minus his glasses. "Don't they understand
that they are the clue to his vulnerability?"

I wonder when Harry got glasses?  Maybe that "missing time" from when he was
taken from GH and deposited on Petunia's doorstep?

charme