Sense Organs: The Eyes Quiz

Study Notes

The slideshow provided different pictures for the students to look at and identify.

Eyelid: Protects eyes from dirt, dust, and bright light; keeps eyes clean and moist.
Eyebrows: Prevent sweat from entering the eyes.
Eyeball: Ball-shaped portion of the eye; its internal parts enable clear vision.
Eyelashes: Work with the eyelids to prevent foreign materials from entering the eyes.
Sclera: The white part of the eye that protects the eyeball.
Cornea: The clear layer at the front of the eye that transmits and focuses light.
Iris: The colored part of the eye that controls and adjusts the amount of light entering.
Pupil: The opening in the center of the iris through which light enters.
Lens: Located behind the pupil, it focuses light rays onto the retina. It becomes thicker for close-up objects and thinner for far-away objects.
Retina: Light rays are focused on the retina, converting light into electrical impulses.
Optic Nerve: Carries electrical signals from the retina to the brain.

Common Eye Irritation: occurs when particles like dust enter the eyes. Avoid rubbing the eyes. Clean hands and wash the affected eye. See a doctor if pain persists.
Sty or Kuliti: A tiny painful red swelling on the eyelid, potentially caused by infection. Apply warm compresses and seek medical attention if it lasts several days.
Conjunctivitis or Sore eyes: Swelling and reddening of the clear layer covering the eye, typically caused by infection. Protect yourself by avoiding contact with those affected. Avoid shared towels.

Nearsightedness (Myopia): Can see near objects clearly, but not far objects. Eyeglasses can help.
Farsightedness (Hyperopia): Can see far objects clearly, but not close objects. Eyeglasses or adjustments to eye structure might be helpful.
Squinting: Result of weak eye muscles. There are different types, like inside or outside squinting, or crossed eyes.

Dietary Habits: Eat vegetables such as leafy green, yellow, or other veggies rich in vitamin A to keep your eyes and vision clear.
Optimal Lighting: Read under sufficient and bright light, helping avoid eye strain.
Rest Breaks: Rest your eyes after prolonged reading sessions. Close your eyes for a few minutes to reduce eye strain.
Sharp Objects: Use caution when handling sharp or pointed objects.
Avoid activities that may harm eyes: Avoid reading or straining eyes while lying down or in a moving vehicle.