An intracorneal ring is a small plastic device implanted in a person's cornea to change its curvature.
Question:
(a) If a person is nearsighted, should the ring increase or decrease the cornea's curvature?
(b) Choose the best explanation from among the following:
I. The intracorneal ring should increase the curvature of the cornea so that it bends light more. This will allow it to focus on light coming from far away.
II. The intracorneal ring should decrease the curvature of the cornea so it's flatter and bends light less. This will allow parallel rays from far away to be focused properly on the retina.
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