Understanding Blue Light and Vision

What is the relationship between wavelength and health effects on the eye?

• Longer wavelengths have more health effects.

• Longer wavelengths have fewer health effects.

• Shorter wavelengths have fewer health effects.

• Wavelength does not affect health.

Which color of light is mentioned as potentially dangerous due to its wavelength?

• Red

• Green

• Violet

• Yellow

What is circadian rhythm?

• A musical beat one can hold

• It is the wavelength above which fewer health effects are seen.

• A 24-hour cycle of physical, mental, and behavioral changes that occur in most living things. The term comes from Latin and means "about a day"

• It is the wavelength of red light.

What part of the eye does light first pass through?

• Retina

• Lens

• Cornea

• Optic nerve

What is the function of the optic nerve in the human eye?

• It focuses light onto the retina.

• It transmits visual information to the brain.

• It adjusts the size of the pupil.

• It filters harmful light.

Which part of the eye is responsible for focusing light onto the retina?

• Cornea

• Pupil

• Lens

• Optic nerve

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

• It adjusts the size of the pupil.

• It focuses light onto the lens.

• It converts light into neural signals.

• It protects the eye from UV light.

Which color of light is mentioned as being on the same hinge as UV light in terms of potential danger?

• Blue

• Red

• Green

• Yellow

What is the primary function of the pupil in the human eye?

• To focus light onto the retina.

• To control the amount of light entering the eye.

• To convert light into neural signals.

• To transmit visual information to the brain.

Which part of the eye is directly responsible for the initial bending of light?

• Retina

• Lens

• Cornea

• Optic nerve