近视眼弥散斑直径与瞳孔的关系

A STUDY ON THE RELATIONSHIP BETWEEN THE BLUR CIRCLE DIAMETER AND THE PUPIL SIZE IN MYOPIA

本文作者设计了一种应用激光技术测定近视眼弥散斑变化的方法,并将其初步测试结果与理论计算值进行了比较。结果表明,近视眼弥散斑直径随离焦量及瞳孔直径的增加而增大。比较理论值和实测值,两者间存有一定差异。作者认为实测值较理论值更能准确地评估近视的成象质量。

A new method for measuring the blur circle diameter with laser technique was designed. From the comparison of the preliminary estimation with the theoretical calculation, the results showed that the blur circle diameter was increased with the defocus and the pupil diameter. There was some deviation between the theoretical value and the measuring value. The authors hold that the measuring value can evaluate the image quality more precisely than the theoretical value in myopia.