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ciliary body在stroma下有兩層epithelium
外層(靠近stroma,近AC): pigmented epithelium
內層(靠近aqueous方向,近PC): non-pigmented epithelium
blood-aqueous barrier: 在non-pigmentary epithelium的apices間有tight junction形成。
DM retinopathy : lacy vacuolization of pigmented epithelium of iris(重要!)
medulloepithelioma(diktyoma)起源於ciliary body的non-pigmentary epithelium
房水的分泌:與non-pigmentary epithelium上有Na+K+ pump相關。
Carbonic anhydrase II receptor在 pigmented / non-pigmented epithelium上都有。
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