What does a pneumatonometric study of the eye require?
a. Regional anesthesia
b. A pneumotonometer to be placed into the eye
c. A puff of air directed at the surface of the eye
d. An applanation performed with a slit-lamp microscope
C
A pneumotonometer directs a puff of air at the surface of the eye, measuring intraocular pressure by measuring the resistance to the air. The eye is anesthetized before the evaluation.
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