Experimental study of trabecular tissue repair for corneal defect in rabbits

• 作者: Dai-Kun Lei Xia Li Xiao-Wei Gao Yi Liu Yun Xiao
• 来源期刊: 国际眼科杂志:英文版
• 学科: 医学
• 关键词: corneal defect trabecular tissue RABBIT
• 年，卷（期）: 2020,（9）
• 页码范围: 1356-1360
• 页数: 5页
• 分类号: R-332

摘要

AIM:To investigate the mechanism and effect of trabecular tissue repair for corneal defect,and to provide a theoretical basis for its clinical application.METHODS:Trabeculectomy was performed on 40(80 eyes)of 70 New Zealand white rabbits.Take trabecular tissue for backup.Thirty(30 eyes)corneal defect models were made,trabecular tissue was filled in the corneal defect,and the oblique cross stitch was used to suture the corneal laceration and debridement.Anterior segment image and optical coherence tomography(OCT)were performed at the time 1 d,1 wk,1 and 3 mo after the model was made.After the observation,the cornea was to ken and stained with trypanosome blue-alizarin red and the pathological tissue was examined.RESULTS:Observation 1 wk after surgery,the area of corneal defect was edema,but the corneal curvature was basically normal,and the anterior chamber existed under slit lamp.After 3 mo of observation,most corneal defects were repaired in the form of corneal leucoma and corneal macula(73.3%),the filled trabecular tissue gradually became transparent,fused tightly with the corneal tissue,and the corneal curvature was relatively smooth.But in one case,the trabecular planter was partially detached,no serious complications such as corneal laceration occurred after the stitches were removed.CONCLUSION:The trabecular tissue structure is similar to the corneal,and it can be used as a substitute for the corneal tissue defect by providing fiber scaffolds and cell amplification differentiation,and lay a foundation for the second-stage surgical treatment.