摘要
角膜为黏弹性生物组织,其生物力学性能测量方法主要可分为离体测量法和活体测量法。其中离体测量法又分为角膜轴向拉伸法、角膜膨胀法、离体全眼球测量法等;活体测量法以眼反应分析仪测量法为主。几种方法各有优缺点,均不能全面反映角膜的生物力学性能。在基础试验离体测量法中,角膜膨胀法具有较好的可操作性和重复性;活体测量方法中眼反应分析仪测量法如能建立与经典生物力学参数之间的关系,在临床检查和诊断中将具有更大的潜力和推广性。就目前角膜生物力学性能测量方法的研究现状做一综述。
Cornea is a viscoelastic tissue, and the biomechanics measuring way for cornea can be divided into two categories：ex vivo measuring method and in vivo measuring method. The former includes strip extcnsiometry test,inflation test, globe eyeball test, etc. , and the later mainly is ocular response analyzer （ORA） test. Generally, in all the methods above mentioned,inflation test has a better operability and repeatability than other ones. The ORA test will shows a better prospect in application and extension in clinic examination and diagnosis if a good relationship of test results and classical biomechanics parameters,such as Elastic Modulus and Poisson＇ s ratio,is established. The biomechanics features, measuring method of corneal biomechanical parameters,advantages and disadvantages of each method are reviewed.
出处
《眼科研究》
CSCD
北大核心
2009年第9期824-828,共5页
Chinese Ophthalmic Research
