What is the ruling on wearing glasses during prayer, and must they be removed when prostrating?

Removing one's glasses for prostration is not considered an act of extremism; rather, it may be necessary to enable the nose to touch the ground, which is a religiously required act if it does not cause harm. Placing both the nose and the forehead on the ground during prostration is a Sunnah (definition) according to the majority of jurists. As for prostrating specifically on the nose, it is commendable but not obligatory according to the majority of scholars; placing the forehead on the ground is sufficient to fulfill the obligation.