glasses; eyeglasses; spectacles
Rare reading of 眼鏡; the standard word is めがね. This reading may appear in older or formal contexts.
See also: 眼鏡 (めがね)
Reading 眼鏡 as がんきょう is an old-fashioned way of saying it.
He put on his spectacles and read the book.
The old teacher took off his spectacles and closed his eyes.
monocular; telescope (single eyepiece)
magnifying glass