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最近20年内,许多学者应用电子显微镜检查拟确定有争议的所谓“晶体囊膜假性剥脱”的性质及其起源。“假性剥脱”是1954年Dvorak-Theobald提出,旨在把这种假想的晶体囊膜沉着物区别于晶体囊膜内的真正的分离即“真性”晶体囊膜剥脱。Bertelsen等(1964)和Ashton等(1965)分别发表其电子显微镜检查所见,明确指出产生此种脱落物质的是晶体上皮,这种脱屑能穿过邻近赤道部的晶体前囊。其后许多人对老年人晶体或病眼的检查都同意这种说法。目前有证据(包括临床观察所见)说明虹膜和睫状上皮也能产生脱落物质。此外,不论临床有无病变,
In the last 20 years, many scholars have used electron microscopy to determine the nature of the so-called “pseudocapsule of crystalline capsular detachment” and its origins. “False exfoliation” was proposed by Dvorak-Theobald in 1954 to distinguish this hypothetical crystal envelope from the true isolated, “real” crystal envelope in the crystalline envelope. Bertelsen et al. (1964) and Ashton et al. (1965), respectively, published their electron microscopy findings, clearly pointing out that this shedding material is the crystalline epithelium that descends through the anterior lens capsule of the adjacent equator. Many people later on the crystal or eye examination of the elderly agree with this view. There is evidence (including clinical observations) that the iris and ciliary epithelium can produce shedding material. In addition, regardless of clinical presence or absence of disease,