Table 3

Summary of pupil findings in 20 patients with bilateral Horner’s syndrome; numbers of patients with abnormally small pupils (miosis) or prolonged T3/4 values (redilatation lag)

AetiologyNo. of casesMiosisRedilatation lag
BilateralUnilateralBilateralUnilateral
HSAN Type III11010
Amyloidosis41022
Anderson-Fabry disease10010
Diabetes mellitus31120
Familial dysautonomia10001
Multiple system atrophy10001
Pure autonomic failure41131
Dopamine-β-hydroxylase deficiency21120
Carcinomatous symp neuropathy10010
Spinal artery thrombosis10010
Bilateral cervical sympathectomy 10010
All cases2053145