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Br J Ophthalmol:角膜缘屈曲在兔中诱导产生慢性高眼压

2018-09-19 MedSci MedSci原创

中山大学中山眼科中心眼科学国家重点实验室的Wang Q和Wang J等人在Br J Ophthalmol杂志上发表了一项重要的工作,他们通过角膜缘屈曲的方法建立慢性高眼压症(OHT)的兔子模型。

中山大学中山眼科中心眼科学国家重点实验室的Wang Q和Wang J等人在Br J Ophthalmol杂志上发表了一项重要的工作,他们通过角膜缘屈曲的方法建立慢性高眼压症(OHT)的兔子模型。

他们将18只新西兰白兔分成三组。分别将20、25或35mm的乳胶环带植入每只兔子的右眼角膜缘后面。对眼内压(IOP)进行持续8周的测量,之后通过眼底照相、光学相干断层扫描(OCT)和组织学等方法评估视神经损伤情况。同时,通过OCT和前房角镜检查前房角(ACA)。

结果发现,手术后,所有动物中都诱导建立OHT。IOP组在第1、2和第3组中分别达到38.0±3.7、32.0±3.9和24.1±6.5 mm Hg。虽然高眼压的持续时间略有变化,但高眼压在2周内表现出良好的一致性。视杯和视椎之间的面积比率在处理的眼中有73%的增加,并且在第1、2和3组中的平均变化分别为0.10±0.13、0.11±0.08和0.09±0.02。 在处理的眼睛中,视杯的深度增加,同时视网膜神经节细胞密度降低。

因此,他们认为,角膜缘屈曲提供了一种在兔中诱导产生慢性OHT和青光眼视神经病变的有效方法。

原文出处:

Wang, Q., et al., Chronic ocular hypertension in rabbits induced by limbal buckling. Br J Ophthalmol, 2018.

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    2018-09-21 swallow
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    2018-09-21 snowpeakxu
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    2018-09-20 orangesking

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