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根据光学理论导出焦深与眼的瞳孔大小和眼的等效屈光力之间的关系式,利用模型眼的数据证明了焦深对球面屈光不正的影响,从而阐明了使用针孔镜的原理。
The relationship between the depth of focus and the pupil size of the eye and the equivalent power of the eye is derived from the optical theory. The data of the model eye demonstrate the effect of focal depth on the spherical refractive error, thus illustrating the principle of using a pinhole mirror.