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A pupillographic technique, an adaptation of the swinging light test, is described for the measurement of unilateral afferent pupillary defects. In normal persons it yielded accurate, reproducible ...
A pupillary reactions test measures how the pupils of the eye respond to light. An ophthalmologist observes the pupils closely, noting the size and shape, as well as ensuring that both pupils respond ...
Pupil size, which constantly changes to regulate light entering the eye, also dilates in response to stimuli, such as sudden events or pain, as part of the autonomic nervous system's alarm response, ...