Van den Berg T J, Ijspeert J K, de Waard P W, Meire F
Laboratory of Medical Physics and Informatics, Academic Medical Center, Amsterdam, The Netherlands.
Doc Ophthalmol. 1990 Oct;75(3-4):239-46. doi: 10.1007/BF00164837.
Intraocular straylight can be measured, in clinical as well as normal cases, by the direct compensation technique. Intraocular straylight is known to originate from the cornea, lens and fundus. We have studied a fourth source: the translucency of the iris and surrounding ocular wall. For lightly-pigmented normal eyes this source proved to be important. In the present paper results are reported from a patient with X-linked megalocornea. He had diaphany of the iris, as is common in these patients, and photophobic complaints. Quantitative measurements showed that the translucency was much increased so that the intraocular straylight was far above the normal level.
在临床病例以及正常情况下，眼内杂散光均可通过直接补偿技术进行测量。已知眼内杂散光源于角膜、晶状体和眼底。我们研究了第四个来源：虹膜及周围眼壁的半透明性。对于色素较浅的正常眼睛，该来源被证明很重要。在本文中，报告了一名患有X连锁大角膜患者的研究结果。他患有虹膜透照，这在这些患者中很常见，并且有畏光症状。定量测量表明，半透明性显著增加，以至于眼内杂散光远高于正常水平。
