Answer: eyepieces

AnswerCrossword Clue
EYEPIECESVisual aids
EYEPIECESSeeing things
EYEPIECESViewers
eyepiecesEYEPIECE, the lens nearest the eye in an optical instrument
eyepiecesThe lens or group of lenses that is closest to the eye in a microscope, telescope, or other optical instrument