HORNERS SYNDROME - AN ELECTRON-MICROSCOPIC STUDY OF A HUMAN IRIS

被引:13
作者
MCCARTNEY, ACE [1 ]
RIORDANEVA, P [1 ]
HOWES, RC [1 ]
SPALTON, DJ [1 ]
机构
[1] ST THOMAS HOSP,LONDON SE1 7EH,ENGLAND
关键词
D O I
10.1136/bjo.76.12.746
中图分类号
R77 [眼科学];
学科分类号
100212 ;
摘要
Electron microscopy was performed on the irides of a man with a history of a long standing Horner's syndrome which resulted in iris heterochromia. Comparison of his normal brown iris with the depigmented blue iris showed depletion of anterior border cells and absence of sympathetic nerve fibres. Stromal melanocyte numbers were also diminished but melanosome numbers within the residual cells were not significantly different. Postnatal maintenance of stromal and anterior border zone pigmentation, derived from the neural crest, would appear to be dependent on an intact sympathetic nerve supply in contrast to the iris pigment epithelium which remains normally unaffected in Homer's syndrome.
引用
收藏
页码:746 / 749
页数:4
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