Questions and Answers
What does the 'R' in the Full Form of FRIEND stand for?
What is the 'E' in the Full Form of FRIEND?
Which of the following is NOT a quality of a STUDENT according to the given full form?
What does the 'I' in the Full Form of STUDENT stand for?
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What is the 'D' in the Full Form of FRIEND?
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Which eye structure is responsible for controlling the amount of light entering the eye?
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Which of these eye disorders is characterized by a clouding of the lens?
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What type of eye movement is used to track a moving object?
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Which of the following is NOT a function of the eye?
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What is the term for the ability of the lens to change shape to focus on objects at different distances?
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What is the central area of the retina responsible for sharp, detailed vision called?
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Which type of eye movement allows us to focus on objects at different distances by moving the eyes inward or outward?
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Which eye disorder is characterized by the inability to see close objects clearly?
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Study Notes
Acronyms and Their Meanings
- FRIEND is an acronym that stands for Foundation of Trust, Reciprocal Respect, Interconnectedness, Empathy and Empowerment, Non-judgmental Nature, Devotion and Dedication
- STUDENT is an acronym that stands for Smart Thoughtful Understanding Disciplined Energetic Notable Talented Person
Structure of the Eye
- The eye has several layers: cornea (transparent outer layer), iris (colored part controlling light entry), pupil (opening regulating light), lens (flexible, transparent structure for focusing light), retina (innermost layer sensing light), macula (central area for central vision), and optic nerve (carries signals to the brain).
Functions of the Eye
- Light refraction occurs when light passes through the cornea and lens, bending to focus on the retina.
- Accommodation allows the lens to change shape for focusing on objects at different distances.
- Iris control regulates light entry through the pupil, controlling the amount of light entering the eye.
- Visual acuity refers to the sharpness of vision, dependent on the eye's ability to focus and detect light.
Types of Eye Movements
- Saccadic movement involves rapid, jerky movements between fixation points, allowing the eye to quickly scan a scene.
- Pursuit movement is a smooth, continuous movement to track moving objects.
- Vergence movement enables the eyes to move inward or outward to focus on objects at different distances.
Eye Disorders and Diseases
- Myopia (nearsightedness) makes it difficult to see distant objects clearly due to an elongated eyeball or steep cornea.
- Hyperopia (farsightedness) makes it difficult to see close objects clearly due to a shortened eyeball or flat cornea.
- Cataracts are a clouding of the lens that impairs vision, often caused by age or injury.
- Glaucoma results from increased pressure in the eye damaging the optic nerve, potentially leading to blindness.
- Macular degeneration is a condition where the macula is damaged, impairing central vision and daily activities.
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Description
Test your knowledge of the full forms of FRIEND and STUDENT acronyms, covering various aspects of relationships and personality traits.
