非球面设计人工晶状体的像质评价研究
Study on the Imaging Quality Evaluation of Aspheric Intraocular Lenses
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摘要: 该研究通过建立接近人眼实际角膜球差特征的模拟眼,研究人工晶状体成像质量客观评价方法,满足不同设计理念的非球面人工晶状体的MTF成像质量评价需要。结合实际临床人眼角膜球差研究数据,分别建立了对应于泽尼克c (4,0)系数为0.00 μm、0.10 μm、0.20 μm、0.28 μm的模拟角膜,实测模拟角膜镜片的光学质量基本达到理论设计效果,MTF值与理论设计值偏差与MTF测试重复性相当。人工晶状体模拟眼的建立为非球面人工晶状体成像质量技术评价标准的制定提供了研究手段。Abstract: The article is to study the objective evaluation method of the imaging quality of aspheric intraocular lens with different design concepts by establishing the model eye which is close to the actual corneal spherical aberration characteristics. Combined with the research data of corneal spherical aberration, the simulated cornea corresponding to Zernike c(4,0) coefficient 0.00 μm, 0.10 μm, 0.20 μm and 0.28 μm was established respectively. The optical quality of the measured simulated corneal lenses basically reached the theoretical design effect, and the deviation between the MTF value and the theoretical design value was equivalent to the MTF test repeatability. The establishment of model eye for artificial lens provides a research tool for the evaluation of aspheric intraocular lens imaging quality.