Constructing a human eye model: The cornea shape effect on optical imaging for the human eyes

This paper study the effect of cornea shape on optical imaging of the human eyes for future constructing a human eye model using ray tracing method in optical design software Zemax. Theoretical calculation results show that geometric image is best when the cornea´s front surface radius being 7.8mm and gets bad away from 7.8mm. When the cornea´s front surface radius is 7.8±0.015mm, the image can´t be recognized. Further, calculation RMS radius shows the radius is smallest when the cornea´s front surface radius being 7.8mm and gets big when away from 7.8mm.