Grzybowski Andrzej, Winiarczyk Iwona
Department of Ophthalmology, Poznan City Hospital, Poland of Ophthalmology, ul. Szwajcarska 3, 61-285 Poznań, Poland ; Department of Ophthalmology, University of Warmia and Mazury, ul. Żołnierska 14C, Olsztyn, Poland.
Department of Ophthalmology, Poznan City Hospital, Poland of Ophthalmology, ul. Szwajcarska 3, 61-285 Poznań, Poland.
Saudi J Ophthalmol. 2015 Jan-Mar;29(1):85-8. doi: 10.1016/j.sjopt.2013.09.002. Epub 2013 Sep 21.
Myelinated nerve fibers (MNF) occur in less than 1% of the population, however, they might be responsible for diagnostic dilemmas in cases with visual loss. The case report of an aged pseudophakic patient with visual deterioration in the right eye and MNF in both eyes is presented. The documentation provided by the patient proved recent several examinations of both fundi, and all of them were described as normal. Physical examination revealed the posterior capsule opacification in the right eye, white lesions on the retina of the right eye around the optic disk, and in the left eye - the peripheral, which could correspond to the myelinated fibers. Although visual field changes and OCTs corresponded to the NMF, it turned out, however, that visual acuity loss was in fact caused by PCO and was reversed by the YAG capsulotomy procedure. This case shows some problems related to MNF diagnosis and evaluation of their influence on visual function.
有髓神经纤维（MNF）在不到1%的人群中出现，然而，它们可能是导致视力丧失病例诊断困境的原因。本文报告了一例老年人工晶状体植入患者，其右眼视力下降，双眼均有MNF。患者提供的资料显示近期对双眼眼底进行了多次检查，所有检查结果均描述为正常。体格检查发现右眼后囊膜混浊，右眼视盘周围视网膜有白色病变，左眼有周边病变，可能与有髓神经纤维相对应。尽管视野变化和光学相干断层扫描（OCT）结果与有髓神经纤维相符，但事实证明，视力丧失实际上是由后囊膜混浊引起的，YAG激光后囊切开术使其得到了改善。该病例显示了与有髓神经纤维诊断及其对视觉功能影响评估相关的一些问题。
