| Answer | Crossword Clue |
|---|---|
| dioptometers | DIOPTOMETER, an instrument for measuring ocular refraction |
| Answer | Crossword Clue |
|---|---|
| dioptometers | DIOPTOMETER, an instrument for measuring ocular refraction |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.