PURPOSE: To report a case of chronic unilateral ptosis in a 63-year-ol
d, otherwise healthy woman with visual restriction, METHODS: We perfor
med a biopsy on an enlarged tarsal plate that we believed had caused p
tosis. A levator aponeurotic advancement was performed subsequently.RE
SULTS: Histologic and ultrastructural examination of the biopsy specim
en disclosed amyloidosis of the tarsal conjunctiva and tarsus. There w
as no evidence of systemic amyloidosis. CONCLUSION: Localized amyloido
sis involving the tarsal conjunctiva and tarsus is a rare cause of chr
onic eyelid thickening and ptosis.