In which lighting condition is pupillary inequality due to Horner’s syndrome most obvious?

Autor: Alexander Z
2. Klinische Neurologie
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Oktober 11, 2024

In which lighting condition is pupillary inequality due to Horner’s syndrome most obvious?

A: Well-lit room

B: Dimly lit room

C: Both well-lit and dimly lit rooms

Pupillary inequality due to an oculomotor palsy is most obvious in a well-lit room, whereas pupillary inequality due to Horner’s syndrome is most obvious in a dimly lit room. This is because Horner’s syndrome affects the sympathetic pathway, leading to a smaller pupil (miosis) that is more noticeable in low light conditions when the pupil should normally dilate.

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In which lighting condition is pupillary inequality due to Horner’s syndrome most obvious?

In which lighting condition is pupillary inequality due to Horner’s syndrome most obvious?

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