Do you know what the most common eye color in the world is?
Do you know what the lens in the eye is responsible for?

It’s time to test your knowledge!
12 fun and light questions to see how much you really know about eyes, vision, and sunglasses.

Good luck!

1. Can the human eye see from infrared to ultraviolet?

(A) Yes
(B) No
(C) Only in bright light
(D) Only with special glasses

2. What is the most common eye color in the world?

(A) Brown
(B) Blue
(C) Green
(D) Pink

3. What percentage of UVA and UVB rays can high-quality sunglasses block?

(A) 50%
(B) 80%
(C) 90%
(D) 99%-100%

4. Why is it not recommended to sleep with contact lenses?

(A) Because the cornea does not get enough oxygen
(B) They can stick to the eye and cause damage
(C) It’s a myth; you can sleep with them comfortably
(D) Because they can disappear inside the eye while sleeping

5. What is farsightedness?

(A) A condition where the eyeball is shorter than normal
(B) A condition where the eyeball is longer than normal
(C) Sensitivity to light
(D) An allergy to peanuts

6. What is the function of the lens in the eye?

(A) Creating images
(B) Focusing light
(C) Detecting colors
(D) Enlarging the eye to massive proportions

7. What is the visual impairment known as “lazy eye”?

(A) Complete blindness
(B) Double vision
(C) Reduced vision in one eye
(D) No desire to look at things

8. What is the most common cause of blindness in the world?

(A) Cataracts
(B) Glaucoma
(C) Macular degeneration
(D) Diabetes

9. How do glasses enlarge objects?

(A) By enlarging the pupils
(B) By using magnifying lenses
(C) Magic
(D) They don’t actually enlarge objects

10. At what age can someone start wearing contact lenses?

(A) 7
(B) 2
(C) There is no set age; as soon as the child is responsible enough
(D) 120

11. What does the term “color blindness” mean?

(A) Being undecided about a favorite color
(B) Seeing everything in shades of gray
(C) Eyes that change color all the time
(D) The inability to distinguish between certain colors

12. What causes the “red-eye effect” in photos?

(A) Crying a lot before taking a picture
(B) Overuse of a phone
(C) The camera flash
(D) Eating too many cucumbers

Answers:

1 – B, 2 – A, 3 – D, 4 – A, 5 – A, 6 – B, 7 – C, 8 – C, 9 – B, 10 – C, 11 – D, 12 – C