Phacolytic glaucoma
* Hypermature cataract,自己leakage (通常在年紀大者)
* 眼壓會急速增高!結膜很紅,角膜很霧
* 與scavenging macrophage堵住TM有關
=> open-angle,trabecular occlusion by macrophage
=> 沒有KP,也沒有synechiae ~考!
* 機轉: innate immunity(aqueous可見lipid-laden macrophage)
Phacoanaphylactic endophthalmitis (phacotoxic, phacoanaphylactic)
* 較為少見
* granulomatous inflammation → 會有KP! (phacolytic者不會有KP)
* 通常是在trauma或cataract手術後產生
* 機轉:acquired immunity
=> IgG直接攻擊lens protein (immune complex against lens crystallin)
* 眼壓會增高
=> open-angle-trabecular occlusion by lens protein
* 雖然名字有 anaphylatic,但卻不是type 1 hypersensitivity (名字取得不好,易誤會)
=> 反而是 type 2,3,4 hypersensitivity參與機轉。
lens particle glaucoma
cataract extraction殘留cortex,造成發炎及blockage of TM by lens protein。
Phacomorphic glaucoma
lens膨大往前頂,Posterior Pushing mechanism→pupillary block→angle closure glaucoma
ectopic lentis
也會造成angle closure glaucoma with pupillary block
例題:
下列何者主要為angle closure glaucoma ?
A. Phacoanaphylactic endophthalmitis
B. Phacolytic glaucoma
C. Phacomorphic glaucoma
D. Lens particle glaucoma
答: C
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