Hint: Used to help people see
The answer to this puzzle is:
1. LANTERN
2. GOGGLES
3. GLASSES
4. TORCH
5. SPOTLIGHT
6. MAGNIFIER
7. TELESCOPE
8. PEEPHOLE
9. LENS
10. DOORHOLE
11. LIGHT
2. GOGGLES
3. GLASSES
4. TORCH
5. SPOTLIGHT
6. MAGNIFIER
7. TELESCOPE
8. PEEPHOLE
9. LENS
10. DOORHOLE
11. LIGHT