Answer:

eyeglass

Answer	Crossword Clue
EYEGLASS	Monocle
EYEGLASS	Spectacle
EYEGLASS	Lens

EYEGLASS	Lens.
EYEGLASS	Sight enhancer
EYEGLASS	Pupil's enhancement

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.