Across
- 2. The point behind a lens where light rays meet
- 7. The name for long-sightedness
- 9. The bending of light as it moves through different substances
- 11. The name for short-sightedness
- 12. A ray of light leaving a mirror
- 13. Reversed sideways (in a mirror)
- 16. Distance between a lens and its focus
- 17. The transparent part of the eye that covers the iris
Down
- 1. The part of the eye that focuses light onto the retina
- 3. The nerve that carries an electrical signal from the eye to the brain
- 4. A ray of light approaching a surface
- 5. The type of lens that curves inwards
- 6. The law stating that light is reflected at the same angle it is incident
- 8. An imaginary line drawn at a right angle to a surface
- 10. Part of the eye that converts light into electrical signals
- 14. The white outer part of the eye
- 15. The type of lens that curves outwards