| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| In 1986 Dr. Patricia Bath invented a device that safely uses one of these beams to remove cataracts in the eye | a laser | $1,200 | DJ | INVENTORS & INVENTIONS | 2020-11-13 | #8280 | |
| In 1960 Theodore Maiman built the 1st of these devices for producing an intense beam of coherent light | a laser | $100 | J | INVENTORS | 1992-06-26 | #1820 |