Chen Jing, Han Su-Ning, Zou Xiu-Lan, Zou Yu-Ping
Department of Ophthalmology, Guangzhou General Hospital of Guangzhou Command, Guangzhou 510010, China. E-mail:
Nan Fang Yi Ke Da Xue Xue Bao. 2017 Nov 20;37(11):1551-1554. doi: 10.3969/j.issn.1673-4254.2017.11.21.
To study the dynamic changes of levels of hepatocyte growth factor (HGF) in tears and their association with corneal haze in rabbits early after epipolis laser in situ keratomileusis (Epi-LASIK).
Twenty-four New Zealand rabbits received Epi-LASIK with an ablation depth of 100 µm in one eye and of 150 µm in the other eye. Before and at 3, 7, 14, and 30 days after the surgery, the level of HGF in tears collected from the rabbits was measured using enzyme-linked immunosorbent assay (ELISA), and corneal haze was graded after surgery.
In all the rabbits, corneal epithelium healing occurred in 3 to 5 days after Epi-LASIK. Corneal haze appeared 3 days postoperatively in the rabbits accompanied by increased levels of HGF in tears. At 3, 7, 14, and 30 days after the surgery, the rabbits with an ablation depth of 150 µm showed more obvious corneal haze (P<0.05) and significantly higher levels of HGF in tears than those with an ablation depth of 100 µm (P<0.05).
In rabbits receiving Epi-LASIK, HGF levels in tears and the grade of corneal haze show a positive correlation early after the surgery and are both related with the depth of ablation.
研究兔表层角膜镜片式准分子原位角膜磨镶术(Epi-LASIK)术后早期泪液中肝细胞生长因子(HGF)水平的动态变化及其与角膜 haze 的关系。
24 只新西兰兔,一只眼行 Epi-LASIK,消融深度为 100μm,另一只眼消融深度为 150μm。手术前及术后 3、7、14 和 30 天,采用酶联免疫吸附测定(ELISA)法检测兔泪液中 HGF 水平,并在术后对角膜 haze 进行分级。
所有兔在 Epi-LASIK 术后 3 至 5 天角膜上皮愈合。术后 3 天兔出现角膜 haze,同时泪液中 HGF 水平升高。术后 3、7、14 和 30 天,消融深度为 150μm 的兔角膜 haze 更明显(P<0.05),泪液中 HGF 水平显著高于消融深度为 100μm 的兔(P<0.05)。
接受 Epi-LASIK 的兔术后早期泪液中 HGF 水平与角膜 haze 分级呈正相关,且均与消融深度有关。