摘要
目的 应用Orbscan Ⅱ角膜地形图仪系统,设计开发角膜数据分析软件来自动获取角膜数据,为角膜的临床诊断提供自动分析功能.方法 实验研究.在现有的角膜地形图仪系统的基础上,角膜数据分析软件通过API Hook挂接到Orbscan进程,在检查测量角膜过程中,由程序即时获取数据,并通过共享内存文件的方式,将数据读取到角膜数据分析软件的程序进程当中,实现角膜数据的采集、获取及分析.结果 对获取的数据进行偏微分分析和拟合回归处理,计算产生360条半子午线的Q值.在vC＋＋6.0开发环境下,利用OpenGL绘图技术,形象地展示了个体化角膜表面的非球面性质及形态图形.结论 角膜数据分析软件能自动获取Orbscan Ⅱ角膜地形图仪系统中的角膜数据,达到软件开发上的无缝链接,提供实际三维角膜形态与Q值分布图,更好地扩展了角膜地形图仪系统的功能,为角膜的进一步研究提供数据基础和自动分析功能.
Objective To acquire the corneal data automatically by designing and developing corneal data analysis software with the Orbscan Ⅱ corneal topography system,providing automatic analysis function for corneal clinical diagnosis.Methods Based on the existing corneal topography system,the corneal data analysis software hooked the process of the Orbscan using API Hook.During the measurement of the cornea,the program acquired the corneal data in real time,and through sharing memory file,took the data into the program process of the corneal data analysis software to realize collection,acquisition and analysis of the corneal data.Results The acquired data were carried out partial differential analysis and regression to calculate and produce Q-value of the 360 semi-meridian.It used OpenGL graphics technology to vividly demonstrate aspheric properties and morphological images of individual corneal surface in VC ＋＋ 6.0 development environment.Conclusion The corneal data of the Orbscan Ⅱ corneal topography system could be obtained automatically by the analysis program,which achieved seamless connection of software development,provided the actual three-dimensional corneal morphology and Q-value distribution curve for patients,better extended the function of the corneal topography system,and provided the data foundation and automatic analysis function for the further study of cornea.
出处
《中华眼视光学与视觉科学杂志》
CAS
CSCD
2015年第7期394-397,共4页
Chinese Journal Of Optometry Ophthalmology And Visual Science
基金
浙江省国际科技合作专项计划项目（2013C24032）
关键词
角膜地形图
角膜
数据获取
Corneal topography
Cornea
Data acquisition
