| 100% | INFRA | 5 | Range of light that's invisible to the human eye |
| 51% | UVRAY | 5 | Bit of light that's harmful to the skin |
| 50% | PUPIL | 5 | Part of the eye that reacts to light |
| 43% | PUN | 3 | Type of joke that might cause the listener's eyes to roll |
| 42% | EXPOSURE | 8 | The amount of light that gets to a piece of film |
| 42% | RETINA | 6 | Part of the eye that receives light |
| 41% | RETINA | 6 | Part of the eye that receives focused light |
| 41% | RETINA | 6 | Part of the eye that perceives light and color |
| 41% | DLI | 3 | Roman numeral that anagrams to part of the eye |
| 41% | GUAM | 4 | Island that’s home to “The Properties of Perpetual Light” author Julian Aguon |
| 41% | LENS | 4 | Part of the eye that focuses light onto the retina |
| 40% | SLEEP | 5 | Activity that seems to pass in the blink of an eye |
| 40% | DIWALI | 6 | Indian "festival of lights" that's usually held in the Autumn |
| 40% | TINY | 4 | Invisible to the naked eye |
| 40% | MICROSCOPIC | 11 | Invisible to the naked eye |
| 40% | ATOM | 4 | Length of time that was compared to the "twinkling of an eye" in the Greek text of Paul's 1 Corinthians 15:52 |
| 39% | TINY | 4 | Invisible to the naked eye, perhaps |
| 39% | OZARKS | 6 | Range that's home to the Mark Twain National Forest |
| 38% | OWL | 3 | Barn ___, "wise" bird of prey that can detect sounds up to 12,000 Hz, far beyond the human hearing range |
| 38% | ANDES | 5 | Range that's home to the 22,831-foot Mount Aconcagua |
| 38% | IRIS | 4 | Girl's name that is also part of the eye |
| 38% | IDAHO | 5 | State that's home to the Museum of Clean |
| 38% | ATHENS | 6 | City that's home to the Arch of Hadrian |
| 38% | JERUSALEM | 9 | City that's home to the Dome of the Rock |
| 38% | CUBA | 4 | Nation that's home to the Palace of the Revolution |
| 38% | OHIO | 4 | State that's home to the Aviation Hall of Fame |
| 38% | ASWAN | 5 | City that's home to the Mausoleum of Aga Khan |
| 38% | RENO | 4 | City that's home to the Nevada Museum of Art |
| 38% | OHIO | 4 | State that's home to the Cleveland Museum of Art |
| 38% | KENT | 4 | County that's home to the White Cliffs of Dover |