眼球动态数学模型的建立和计算机绘图重现

Establishment of the dynamic mathematic models of two kinds of eyeball shape and reappearance of computer drawing

研究目的建立眼球动态数学模型，利用计算机绘图再现，探索计算机绘图技术在眼科学中应用的新方法。研究方法以眼球长为变量，利用视轴长与其它参数的相关关系，借助于计算机，建立两种眼球形态模式的动态数学模型，并在计算机屏幕上再现其平面几何图形。结果两种眼球动态数学模型，均在规定的20～28mm范围内获得完美再现。结论两种眼球形态模式客观存在，动态数学模型可用于编制应用程序，为眼科医疗、教学和科研服务，为计算机绘图技术在眼科应用增加一种新的方法。

Objective To search for a new method of computer drawing use in ophthalmology, by estublishing the dynamic mathematic eyeball models and drawing reappearance.Methods The dynamic mathematic eyeball models of two kinds of eyeball shape were established with the computer on the basis of the relationship between visual axisl length and other ocular paremeters, and showed on computer screen by means of plan geometric patterns. The visual axis length was the only variab1e in the models. Results These two dynamic mathematic models were obtained and reappeared successfully, within the rang of 20 to 28mm.Conclusion These two eyeball shapes are objective, verified by mathematic test. The dynamic mathematic eyeball models could be used in ophthalmic clinics, teaching and scientific study. A new method is added to computer drawing use in ophthalmology.