Iris ultrastructure in patients with synechiae as revealed by in vivo laser scanning confocal microscopy

BMC Ophthalmology

Research Article

Shusheng Wang¹  Chun Zhang²  Hongbo Cheng²  Ping Guo²  Song Tang²  Ming Li³ 

[1] Department of Cell and Molecular Biology, Tulane University, 2000 Percival Stern Hall, 6400 Freret Street, 70118, New Orleans, LA, USA;Department of Ophthalmology, Tulane University, 1430 Tulane Avenue, SL-69, 70112, New Orleans, LA, USA;Key laboratory of ophthalmology, Shenzhen Eye Hospital, Ji-nan University, 518000, Shenzhen, P. R. China;Key laboratory of ophthalmology, Shenzhen Eye Hospital, Ji-nan University, 518000, Shenzhen, P. R. China;Department of Cell and Molecular Biology, Tulane University, 2000 Percival Stern Hall, 6400 Freret Street, 70118, New Orleans, LA, USA;Department of Ophthalmology, Tulane University, 1430 Tulane Avenue, SL-69, 70112, New Orleans, LA, USA;

关键词: Iris;    In vivo;    Ultrastructure;    Laser scanning confocal microscopy;   

DOI  :  10.1186/s12886-016-0224-2

 received in 2015-06-24, accepted in 2016-04-15,  发布年份 2016

来源: Springer

【 摘 要 】

BackgroundIris plays important roles in ocular physiology and disease pathogenesis. Currently it is technically challenging to noninvasively examine the human iris ultrastructure in vivo. The purpose of the current study is to reveal human iris ultrastructure in patients with synechiae by using noninvasive in vivo laser scanning confocal microscopy (LSCM).MethodsThe ultrastructure of iris in thirty one patients, each with synechiae but transparent cornea, was examined by in vivo LSCM.ResultsFive characteristic iris ultrastructures was revealed in patients with synechiae by in vivo LSCM, which include: 1. tree trunk-like structure; 2. tree branch/bush-like structure; 3. Fruit-like structure; 4. Epithelioid-like structure; 5. deep structure. Pigment granules can be observed as a loose structure on the top of the arborization structure. In iris-associated diseases with Tyndall’s Phenomenon and keratic precipitates, the pigment particles are more likely to fall off from the arborization structure.ConclusionsThe ultrastructure of iris in patients with synechiae has been visualized using in vivo LSCM. Five iris ultrastructures can be clearly observed, with some of the structures maybe disease-associated. The fall-off of the pigment particles may cause the Tyndall’s Phenomenon positive. In vivo LSCM provides a non-invasive approach to observe the human iris ultrastructure under certain eye disease conditions, which sets up a foundation to visualize certain iris-associated diseases in the future.

【 授权许可】

CC BY   
© Li et al. 2016