Glasses or spectacles: eyewear worn to protect the eyes or correct vision (includes prescription glasses and sunglasses).
新しい眼鏡を作ったら視界がとてもクリアになった。
After getting new glasses, my vision became much clearer.
彼は本を読むときだけ眼鏡をかける。
He only puts on his glasses when he reads.
眼鏡が曇って困った。
My glasses fogged up and it was a problem.
Metaphorical 'eye' meaning judgment, discernment, or insight (as in expressions like 'to meet someone's standards').
あの先生の眼鏡にかなう作品を作りたい。
I want to create a work that meets that teacher's standards.
彼女は服の眼鏡が厳しいので、選ぶのがいつも大変だ。
Her taste in clothes is strict, so it's always hard to pick something for her.
A derogatory term used to mock someone who wears glasses ('four-eyes'); insulting slang and should be used with caution.
子供たちが彼を『メガネ』とからかって泣かせた。
The children teased him by calling him 'megane' and made him cry.