Which of the following statements about vision disturbances are true?
1) Myopia is a problem with far vision and is corrected with divergent lenses.
2) Presbyopia is a problem with far and near vision and is corrected with converging lenses.
3) Presbyopia and hyperopia are both corrected with converging lenses.
4) The myopic eye has too much convergence when at rest.
5) Presbyopia appears with age.
CHOICE OF ANSWERS:
a) All the statements are true.
b) Statements 1), 3), 4) and 5) are true.
c) Only statements 1), 3) and 4) are true.
d) Only statements 1), 4) and 5) are true.
Answers
Answer:
1,3,4,5is true answer
Answer:
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Explanation:
1. Nearsightedness, or myopia, is the inability to see distant objects and is corrected with a diverging lens to reduce power. Farsightedness, or hyperopia, is the inability to see close objects and is corrected with a converging lens to increase power.
2. An eye that suffers from myopia as well as from hypermetropia is said to suffer from presbyopia
3. A person with this defect cannot see objects distinctly placed at any distance from him. To correct this defect, a person is prescribed bifocal lens that has both types of
lenses convex and concave 4. The higher the number the more short sighted you are. Mild myopia includes powers up to -3.00 dioptres (D). Moderate myopia, values of -3.00D to -6.00D. High myopia is usually myopia over -6.00D.
5. a) all statements are true