The Eyes

Key points :

Parts of the Eye:

• Cornea: The transparent front part that helps focus light.
• Iris: The colored part of the eye that controls how much light enters.
• Pupil: The black circular opening in the iris that lets light in.
• Lens: Focuses light onto the retina.
• Retina: The layer at the back of the eye that senses light and sends signals to the brain.
• Optic Nerve: Transmits visual information from the retina to the brain.

How We See:

• Light enters through the cornea and pupil.
• The lens bends (refracts) the light and focuses it on the retina.
• Photoreceptors in the retina (rods and cones) detect light and color.
• The optic nerve carries the image to the brain, which processes what we see.

Function of the Eye:

• Eyes help us to detect light, colors, and shapes.
• The brain interprets the images to help us understand the world around us.

Eye Care:

• Avoid looking at bright lights or screens for a long time.
• Eat foods rich in vitamins A, C, and E (e.g., carrots, spinach).
• Regular eye check-ups are important to maintain good vision.

Common Eye Problems:

• Myopia (Nearsightedness): Difficulty seeing distant objects.

• Hyperopia (Farsightedness): Difficulty seeing nearby objects.

• Astigmatism: Blurred vision due to the irregular shape of the cornea.

• Wearing glasses or contact lenses can help correct vision problems.

Let’s Practice!