Improve Human Vision

What is the role of the lens in the human eye?

• To capture light

• To refract light

• to create images

• to sense colours

In a normal eye, where does the image form?

• In front of the retina

• Behind the retina

• On the retina

• On the optic nerve

How would you describe nearsightedness?

• Can see NEARBY objects CLEARLY

• Can see DISTANT objects CLEARLY

• Blurry vision for both near and far

• Difficulty seeing colours

How would you describe farsightedness?

• Can see NEARBY objects CLEARLY

• Can see DISTANT objects CLEARLY

• Blurry vision for both near and far

• Difficulty seeing colours

What is the purpose of corrective lenses for a farsighted eye?

• To shift the image backward

• To ensure the image forms on the retina.

• To increase the contrast between colors.

• To generate infrared light.

If a prescription has a plus (+) sign, what vision condition does it indicate?

• Nearsightedness

• Farsightedness

• Astigmatism

• Colour Blindness

What does a minus (-) sign in a prescription signify?

• Nearsightedness

• Farsightedness

• Astigmatism

• Colour Blindness

How does colour blindness affect an individual?

• Increases Colour Perception

• Reduces Colour Perception

• Enhances Contrast

• Improves Night Vision

What is the purpose of colour blindness glasses?

• To eliminate colour perception

• To reduce contrast

• To increase contrast between certain colours

• To correct nearsightedness

Why might colour blindness glasses not be universally effective?

• They cause discomfort

• They are expensive

• The only address red and green hues

• They enhance all colour perception