Effect of SMILE-derived decellularized lenticules as an adhesion barrier in a rabbit model of glaucoma filtration surgery

• Main Authors: Houfa Yin, Xinyi Chen, Xiaogang Hong, Jian Ma, Fang Wu, Ting Wan, Yiwen Sang, Qiuli Fu, Zhenwei Qin, Danni Lyu, Wei Wu, Jinfu Yin, Yabo Yang
• Format: Article
• Language: English
• Published: BMC 2021-09-01
• Series: BMC Ophthalmology
• Subjects: SMILE; Decellularized lenticule; Adhesion barrier; Glaucoma; Trabeculectomy
• Online Access: https://doi.org/10.1186/s12886-021-02090-3

Abstract Background To investigate the effects of small incision lenticule extraction (SMILE)-derived decellularized lenticules on intraocular pressure (IOP) and conjunctival scarring in a rabbit model of glaucoma filtration surgery. Methods Trabeculectomy was performed on both eyes of New Zealand rabbits. A decellularized lenticule was placed in the subconjunctival space in one eye of the rabbits (the decellularized lenticule group), and no adjunctive treatment was performed in the fellow eye (the control group). The filtering bleb features and IOP were evaluated 0, 3, 7, 14, 21, and 28 days after surgery, and histopathologic examination was performed 28 days after surgery. Results Decellularized lenticules significantly increased bleb survival and decreased IOP postoperatively in the rabbit model with no adverse side effects. The histopathologic results showed a larger subconjunctival space and less subconjunctival fibrosis in the decellularized lenticule group. Conclusions Decellularized lenticules can prevent postoperative conjunctiva-sclera adhesion and fibrosis, and they may represent a novel antifibrotic agent for trabeculectomy.