Exploring the Human Eye

What are the main parts of the human eye?

• sclera

• cornea, lens, retina, iris, pupil, optic nerve

• vitreous humor

• choroid

Describe the function of the cornea in the eye.

• The cornea is responsible for color vision.

• The cornea focuses light onto the retina and protects the eye.

• The cornea produces tears to keep the eye moist.

• The cornea regulates the pressure inside the eye.

What is the role of the retina in vision?

• The retina produces tears to protect the eye.

• The retina converts light into electrical signals for vision.

• The retina regulates the amount of light entering the eye.

• The retina focuses light onto the lens.

Name one common defect of the eye and explain it.

• Hyperopia

• Astigmatism

• Cataract

• Myopia

How does myopia affect vision?

• Myopia only affects color perception, not clarity of vision.

• Myopia causes all objects to appear blurry regardless of distance.

• Myopia improves the ability to see distant objects clearly.

• Myopia causes distant objects to appear blurry while close objects remain clear.

What is the principle of refraction through a prism?

• Refraction occurs only in water, not in prisms.

• The principle of refraction through a prism is the bending of light as it passes through different media, resulting in dispersion of colors.

• Light travels in a straight line through a prism.

• Prisms only reflect light without bending it.

Explain how a prism can separate white light into a spectrum.

• A prism creates a spectrum by emitting light from its surface.

• A prism separates white light into a spectrum by refracting different wavelengths of light at varying angles.

• A prism reflects white light without changing its color composition.

• A prism absorbs all wavelengths of light, leaving only the color red.

What is the significance of the optic nerve?

• It is responsible for color perception.

• It helps in regulating eye pressure.

• It controls the movement of the eye.

• The optic nerve is significant because it carries visual information from the eye to the brain.

How does hyperopia differ from myopia?

• Hyperopia is the same as myopia.

• Myopia is caused by aging, while hyperopia is genetic.

• Hyperopia is farsightedness (difficulty seeing close objects), while myopia is nearsightedness (difficulty seeing distant objects).

• Both hyperopia and myopia are types of color blindness.

What is the process of recombination of the spectrum?

• The process of recombination of the spectrum involves the absorption of all wavelengths of light.

• The process of recombination of the spectrum is the separation of light into its constituent colors.

• The process of recombination of the spectrum is the reflection of light off a surface.

• The process of recombination of the spectrum is the mixing of different wavelengths of light to create new spectral lines.