An examiner is using an ophthalmoscope to examine a patient's eyes. The patient has astigmatism and is nearsighted. Which of these techniques by the examiner would indicate that the examination is being correctly performed?
A) Rotating the lens selector dial to bring the object into focus
B) Using the large full circle of light when assessing pupils that are not dilated
C) Rotating the lens selector dial to the black numbers to compensate for astigmatism
D) Using the grid on the lens aperture dial to visualize the external structures of the eye
Correct Answer:
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