Answered: What is the problem with his eyes? What…

Science

Biology

What is the problem with his eyes? What should be the optical power of his corrective glasses?

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter36: Sensory Systems

Section: Chapter Questions

Problem 21RQ: Why is it easier to see images at night using peripheral, rather than the central, vision? Cones are...

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Question

(a) David cannot view objects clearly if they are further than 0.80 m. His lens-to-retina distance is 2.0 cm
What is the problem with his eyes? What should be the optical power of his corrective glasses? Neglect
the distance between the glasses and his eyes.

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Why is it easier to see images at night using peripheral, rather than the central, vision? Cones are denser in the periphery of the retina Bipolar cells are denser in the periphery of the retina Rods are denser in the periphery of the retina The optic nerve exits at the periphery of the retina.
What is meant by the statement Vision happens mainly in the brain?
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describe the differences between normal, nearsighted, andfarsighted eyes and explain how defective focusing can becorrected by artificial lenses?