先看一例经典Case
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Contributor:NeilFriedman,M.D
A62-year-oldmanpresentsforacataractconsultation.HereportsmoredifficultywithhisvisionOS,especiallyfromheadlightswhendrivingatnight.Hispastocularhistoryisunremarkable.
HisBCVAis20/20ODand20/30+2OSthatreducesto20/50-2withglaretesting.Duringanteriorsegmentexamination,retroilluminationrevealsthefollowingfinding:
小编看到这两张图的时候惊讶了,这不是盛开在虹膜上的两朵花吗?后来老师跟我说,这叫虹膜透光(Iristransillumination),是利用后部反光照射法(Retroillumination)看到的虹膜萎缩(Irisatrophy)。
虹膜透光4大类
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PXS:瞳孔缘虹膜萎缩
1.瞳孔缘(Peripapillary):如假性囊膜剥脱综合征(Pseudoexfoliationsyndrome,PXS)
PDS:中周部虹膜萎缩
2.中周部(Mid-periphery):如色素播散综合(Pigmentdispersionsyndrome,PDS);
白化病:弥漫虹膜萎缩
3.弥漫(Diffuse):白化病(Albinism)、急性闭角型青光眼(Primaryangleclosureglau白癜风哪里权威沈阳治疗白癜风的医院
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