基于角膜地形图仪的个性化角膜分析软件的设计与实现

Design and Realization of Personalized Corneal Analysis Software Based on Corneal Topography System

角膜作为眼光学系统最为重要的屈光部分,它的特性在临床手术中是一个重要的参数。本课题是通过Windows下的Hook技术自动截获OrbscanⅡ角膜地形图仪在检测过程中产生的数据,并将数据读取到编写的角膜分析软件中,进一步对数据进行分析与计算,求得个体的全角膜360个半子午线Q值。角膜分析软件是以Visual C++6.0为开发环境,利用OpenGL绘图技术,绘制出个性化三维角膜形态与Q值分布图,并实现对角膜数据的即时查询,更好地扩展了角膜地形图仪的功能,为下一步研究角膜疾病的自动筛查打下了坚实的基础。

As the most important refraction part in the optical system,cornea possesses characteristics which are important parameters in ophthalmology clinical surgery.During the measurement of the cornea in our study,we acquired the corneal data of Orbscan Ⅱ corneal topographer in real time using the Hook technology under Windows,and then took the data into the corneal analysis software.We then further analyzed and calculated the data to obtain individual Q-value of overall corneal 360semi-meridian.The corneal analysis software took Visual C＋＋ 6.0as development environment,used OpenGL graphics technology to draw three-dimensional individual corneal morphological map and the distribution curve of the Q-value,and achieved real-time corneal data query.It could be concluded that the analysis would further extend the function of the corneal topography system,and provide a solid foundation for the further study of automatic screening of corneal diseases.