A Method of Measuring Corneal Young’s Modulus

Abstract

Eye is very important to human, where there is a problem with the eye, it is always desirable to seek medical care early on; however, delay still exists due to miscalculation and examination uncertainties. This paper thus tries to provide a more accurate non-intrusive measurement of the cornea properties for doctor’s reference. One of the properties that is very sensitive to the condition of the eye is the Young’s modulus of the cornea. The cornea material exhibits different behavior in patients with different conditions. This paper proposes a mathematical model for describing the mechanical properties of the cornea. By comparing the model behavior with the non-intrusive measurement data taken off the Oculus Corvis^® ST non-contact tonometer, it is possible to deduce the corneal Young’s modulus. Sensitive to the condition of the eye is the Young’s modulus of the cornea. The cornea material exhibits different behavior in patients with different conditions. This paper proposes a mathematical model for describing the mechanical properties of the cornea. By comparing the model behavior with the non-intrusive measurement data taken off the Oculus Corvis^® ST non-contact tonometer, it is possible to deduce the corneal Young’s modulus.