Wearing a glasses chain outside the Eruv

Hi,

One may travel outside an eruv on Shabbat with a chain or cord attached to the handles of his glasses, so long as the glasses are worn normally rather than carried by the chain/cord. The chain or cord is consided part of the arms of the glasses. However, one may not travel with the glasses suspended by the cord, around one's neck.

(Rivivot Ephraim 1:227)

Have a great day,
Mordechai