MED04 Biometrics on the Eye Model
Biometrics on the Eye Model Measurement of sound travel times on an eye model as a typical biometric ultrasound application The measurement of sound travel times on an eye model on an enlarged scale provides a typical biometric ultrasound application based on the A-image method (A-scan) in medical diagnostics in ophthalmology. Keywords: Ultrasound echography, pulse-echo technique, sound transit time, sound velocity, reflection and transmission, reflection and transmission coefficient, A-scan, sonography of the eye, biometry Ophthalmology is another medical field in which ultrasound is used. Here, ultrasound is particularly important for the biometric recording of the eye, i.e. the measurement of distances in the eye. For example, the distance between the cornea and the iris is very important for calculating the properties of an artificial lens, such as that implanted in patients with cataracts. Since the cornea or the lens are too cloudy for optical methods, the use of ultrasound metho