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正常及冷肿胀兔角膜中光散射的波长依赖性及其结构意义。

Wave-length dependencies of light scattering in normal and cold swollen rabbit corneas and their structural implications.

作者信息

Farrell R A, McCally R L, Tatham P E

出版信息

J Physiol. 1973 Sep;233(3):589-612. doi: 10.1113/jphysiol.1973.sp010325.

DOI:10.1113/jphysiol.1973.sp010325
PMID:4754873
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC1350594/
Abstract
  1. The studies described herein involve the use of light scattering measurements to characterize the ultrastructural arrangement of the constituent collagen fibrils in rabbit corneal stromas.2. Theoretical light scattering techniques for calculating the scattering to be expected from the structures revealed by electron micrographs are discussed, and comparison with the experimental light scattering tests the validity of these structures.3. The wave-length dependence of light transmission and of angular light scattering from normal corneas is in agreement with the short range ordering of collagen fibrils depicted in electron micrographs.4. The transmission measurements on oedematous rabbit corneas indicate that transmission decreases linearly with the ratio of thickness to normal thickness.5. The wave-length dependence of transmission through cold swollen corneas indicates that the increased scattering is caused by large inhomogeneities in the ultrastructure. Electron micrographs do, indeed, reveal the presence of such inhomogeneities in the form of large regions completely devoid of fibrils.
摘要

  1. 本文所述的研究涉及利用光散射测量来表征兔角膜基质中组成胶原纤维的超微结构排列。

  2. 讨论了用于计算电子显微镜揭示的结构预期散射的理论光散射技术，并将其与实验光散射进行比较，以检验这些结构的有效性。

  3. 正常角膜的光透射和角向光散射的波长依赖性与电子显微镜中描绘的胶原纤维的短程有序一致。

  4. 对水肿兔角膜的透射测量表明，透射率随厚度与正常厚度之比呈线性下降。

  5. 通过冷肿胀角膜的透射的波长依赖性表明，散射增加是由超微结构中的大不均匀性引起的。电子显微镜确实揭示了以完全没有纤维的大区域形式存在的这种不均匀性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b50c/1350594/28ac829253f6/jphysiol00955-0161-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b50c/1350594/659d69be8e77/jphysiol00955-0159-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b50c/1350594/e3013e895ecf/jphysiol00955-0160-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b50c/1350594/28ac829253f6/jphysiol00955-0161-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b50c/1350594/659d69be8e77/jphysiol00955-0159-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b50c/1350594/e3013e895ecf/jphysiol00955-0160-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b50c/1350594/28ac829253f6/jphysiol00955-0161-a.jpg

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本文引用的文献

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A simple optical apparatus for measuring the corneal thickness, and the average thickness of the human cornea.一种用于测量角膜厚度及人角膜平均厚度的简易光学装置。
Br J Ophthalmol. 1951 Mar;35(3):169-77. doi: 10.1136/bjo.35.3.169.
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The use of lead citrate at high pH as an electron-opaque stain in electron microscopy.在电子显微镜检查中，将高pH值的柠檬酸铅用作电子不透明染色剂。
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PLoS One. 2014 Jun 9;9(6):e98852. doi: 10.1371/journal.pone.0098852. eCollection 2014.
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Ultraviolet-visible light spectral transmittance of rabbit corneas after riboflavin/ultraviolet-A (365 nm) corneal collagen cross-linking.核黄素/紫外线A（365纳米）角膜胶原交联术后兔角膜的紫外-可见光光谱透过率
Mol Vis. 2013 Oct 4;19:2113-23. eCollection 2013.
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Light scattering from edematous human corneal grafts' microstructure: experimental study and electromagnetic modelization.水肿人角膜移植片微观结构的光散射：实验研究与电磁建模
Biomed Opt Express. 2012 Aug 1;3(8):1793-810. doi: 10.1364/BOE.3.001793. Epub 2012 Jul 2.
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Ultraviolet light transmission through the human corneal stroma is reduced in the periphery.紫外线通过人眼角膜基质的传输在周边减少。
Biophys J. 2012 Mar 21;102(6):1258-64. doi: 10.1016/j.bpj.2012.02.023. Epub 2012 Mar 20.
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The molecular basis of corneal transparency.角膜透明性的分子基础。
Exp Eye Res. 2010 Sep;91(3):326-35. doi: 10.1016/j.exer.2010.06.021. Epub 2010 Jul 3.
J Cell Biol. 1963 Apr;17(1):208-12. doi: 10.1083/jcb.17.1.208.
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Corneal development. II. Transparency changes during rapid hydration.角膜发育。II. 快速水化过程中的透明度变化。
Am J Ophthalmol. 1958 Nov;46(5 Pt 2):276-80; discussion 281.
5
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J Physiol. 1957 Apr 30;136(2):263-86. doi: 10.1113/jphysiol.1957.sp005758.
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The transmission of light; through the ocular media of the rabbit eye.光在兔眼眼内介质中的传播。
Am J Ophthalmol. 1956 Dec;42(6):907-10.
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AMA Arch Ophthalmol. 1953 Dec;50(6):748-63. doi: 10.1001/archopht.1953.00920030759011.
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