Littmann计算公式在活体眼底结构测量中的原理

PRINCIPLE OF LITTMANN FORMULA IN THE MEASUREMENT ON THE STRUCTURE OF THE FUNDUS IN LIVING EYE

通过对Ｌｉｔｔｍａｎｎ计算公式的推导和验证，分析该公式在测量活体眼底结构中的原理，表明Ｌｉｔｔｍａｎｎ计算公式在图像处理视网膜细节度量和应用方面具有重要意义。

hrough the deduction and verification,the principle of Littmann formula was analvsed in the measurement of the structure of the fundus in living eye.It indicated that this formula is of great value in using fundus photographs to calulate linear dimension on the retina.