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Questions and Answers
What is the main cause of hypermetropia?
What is the main cause of hypermetropia?
- The light entering the eye is focused in front of the retina
- The cornea having too much curvature
- The eyeball being too long (correct)
- The lens of the eye being too flexible
How does hypermetropia affect vision?
How does hypermetropia affect vision?
- It makes close objects appear clearer than distant objects
- It affects the color perception of the eye
- It causes blurry vision when viewing distant objects
- It leads to difficulty focusing on nearby objects (correct)
Which type of lens is used to correct hypermetropia?
Which type of lens is used to correct hypermetropia?
- Concave lens (correct)
- Prism lens
- Plano-concave lens
- Diverging lens
What optical defect causes hypermetropia?
What optical defect causes hypermetropia?
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How does a converging lens help individuals with hypermetropia?
How does a converging lens help individuals with hypermetropia?
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Study Notes
Hypermetropia (Farsightedness)
- A common refractive error of the eye where distant objects are seen more clearly than nearby objects
- Light entering the eye is focused behind the retina instead of directly on it, causing blurred vision when looking at close objects
- Caused by either an eyeball that is too short or a cornea with too little curvature
Correction of Hypermetropia
- Can be corrected using a converging lens (convex lens) to help focus light rays properly onto the retina
- Allows individuals with hypermetropia to see nearby objects more clearly
- Power of the lens needed to correct hypermetropia depends on the severity of the condition
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Description
Test your knowledge on hypermetropia, a common refractive error of the eye that causes distant objects to be seen more clearly than nearby objects. Learn about the causes, symptoms, and correction methods for hypermetropia.
