Yes.  Be sure to tell your lash artist at the time of your appointment that you wear glasses so that the extensions that are to be applied are not so long that they interfere with your glasses, typically anything longer than 11mm will probably touch the glasses.  Persons who wear contacts would be more comfortable taking the contacts out prior to their lash appointment.  Sometimes people who wear contacts use eye drops for dry eyes or to keep their eyes hydrated.  Keep in mind, that if you use eye drops, they will compromise the longevity of the eyelash extensions, especially following an application and before the 48-hour period needed for the adhesive to cure, which is why we recommend that you not wear contacts during the application.  If you must wear your contacts and you must apply the drops, do the following to try to not compromise your eyelash extensions:  form a pouch in the lower lid and place 1 or 2 drops in the pouch, roll your head back and forth rather than clenching your eye shut.  Clenching your eye shut will allow the eye drop to get all over your extensions, and cause them to fall off prematurely.