Oganesyan O G, Bagamanova E K, Gusak D A
Helmholtz National Medical Research Center of Eye Diseases, Moscow, Russia.
Vestn Oftalmol. 2023;139(2):108-112. doi: 10.17116/oftalma2023139021108.
Selective exchange of pathologically altered retinal layers is currently considered the most practical approach in corneal transplantation. Deep anterior lamellar keratoplasty (DALK) and Descemet membrane endothelial keratoplasty (DMEK) are often performed as pathogenetically substantiated transplantation methods. The technique and the course of surgery, possible complications, and achieved outcomes, among other things, depend largely on the pre-Descemet's layer, which was described more than 10 years ago by several ophthalmologists in varying detail. In view of this, the main issue discussed in literature is the following: is the pre-Descemet's layer (Dua's layer) a separate (new) layer of the cornea, or is it an integral part of the stroma (the Feizi stroma)? This article continues the discussion on «separate designation of the pre-Descemet's layer in the structure of the cornea» and presents the view of the authors on this problem based on own experience, literature data, anatomical subdisciplines, as well as specific aspects of ophthalmological terminology, and with the use of extrapolation and analogies.
目前，选择性置换病变的视网膜层被认为是角膜移植中最实用的方法。深前板层角膜移植术（DALK）和Descemet膜内皮角膜移植术（DMEK）常作为病因学上有充分依据的移植方法进行。手术技术、手术过程、可能的并发症以及取得的效果等，在很大程度上取决于10多年前几位眼科医生以不同详细程度描述过的Descemet膜前层。鉴于此，文献中讨论的主要问题如下：Descemet膜前层（Dua层）是角膜的一个独立（新）层，还是基质（费兹基质）的一个组成部分？本文继续关于“角膜结构中Descemet膜前层的单独命名”的讨论，并基于自身经验、文献数据、解剖子学科以及眼科术语的具体方面，通过推断和类比，呈现作者对该问题的观点。
