Model of the human eye, enlarged to a scale of 3 to 1, including the cornea, the lens and glass bodies for demonstrating the fundamentals of ultrasonic biometry. The biometric ratios in the human eye (distance between cornea and lens, thickness of lens, distance between lens and retina) are very well suited to demonstrating measurement using a pulse-echo method with ultrasound. With the help of an ultrasonic echoscope (U100101) and a 2-MHz ultrasonic probe (U10016), typical echoes and the speed of sound can be measured. This allows the geometry of individual objects in the eye to be calculated. A lesion close to the back of the eye becomes apparent due to the diffuse nature of its echo.
![Model Eye for Ultrasonic Biometry, 1012869 [U10018], Ultrasound](/imagelibrary/U10018/U10018_01_Model-Eye-for-Ultrasonic-Biometry.jpg)
![Model Eye for Ultrasonic Biometry, 1012869 [U10018], Ultrasound](/imagelibrary/U10018/U10018_02_Model-Eye-for-Ultrasonic-Biometry.jpg)
![Model Eye for Ultrasonic Biometry, 1012869 [U10018], Ultrasound](/thumblibrary/U10018/U10018_01_1200_1200_Model-Eye-for-Ultrasonic-Biometry.jpg)
![Model Eye for Ultrasonic Biometry, 1012869 [U10018], Ultrasound (Small)](/thumblibrary/U10018/U10018_02_1200_1200_Model-Eye-for-Ultrasonic-Biometry.jpg)
![Ultrasound coupler gel (physics) 250ml, 1008575 [XP999], Consumables](/thumblibrary/XP999/XP999_01_140_140_Ultrasound-coupler-gel-physics-250ml.jpg)
![Experiment: Ultrasonic Biometry, 8001222 [UE9020100], Ultrasound](/thumblibrary/UE9020100/UE9020100_01_140_140_Experiment-Ultrasonic-Biometry.jpg)
![Sensor Cable, 1021514 [UCMA-BTsc1], Additional Accessories for Computer-aided Experimentation](/thumblibrary/UCMA-BTsc1/UCMA-BTsc1_01_140_140_Sensor-Cable.jpg)
![Ultrasonic Echoscope GS200, 1018616 [U100102], Ultrasound](/thumblibrary/U100102/U100102_01_140_140_Ultrasonic-Echoscope-GS200.jpg)
![Measurement Amplifier U (230 V, 50/60 Hz), 1020742 [U8557560-230], Measuring Amplifier](/thumblibrary/U8557560-230/U8557560-230_01_140_140_Measurement-Amplifier-U-230-V-5060-Hz.jpg)
![Human Heart Model with Bypass, 2 times Life-Size, 4 part - 3B Smart Anatomy, 1000263 [G06], Human Heart Models](/thumblibrary/G06/G06_01_140_140_Human-Heart-Model-with-Bypass-2-times-Life-Size-4-part-3B-Smart-Anatomy.jpg)
![Human Skeleton Model Stan - 3B Smart Anatomy, 1020171 [A10], Skeleton Models - Life size](/thumblibrary/A10/A10_01_140_140_Human-Skeleton-Model-Stan-3B-Smart-Anatomy.jpg)
![Classic Human Brain Model, 5 part - 3B Smart Anatomy, 1000226 [C18], Brain Models](/thumblibrary/C18/C18_01_140_140_Classic-Human-Brain-Model-5-part-3B-Smart-Anatomy.jpg)
![Human Lung Model with Larynx, 7 part - 3B Smart Anatomy, 1000270 [G15], Lung Models](/thumblibrary/G15/G15_01_140_140_Human-Lung-Model-with-Larynx-7-part-3B-Smart-Anatomy.jpg)
![Human Digestive System Model, 3 part - 3B Smart Anatomy, 1000307 [K21], Digestive System Models](/thumblibrary/K21/K21_01_140_140_Human-Digestive-System-Model-3-part-3B-Smart-Anatomy.jpg)
![Dual Sex Urinary System Model, 6 part - 3B Smart Anatomy, 1000317 [K32], Urology Models](/thumblibrary/K32/K32_01_140_140_Dual-Sex-Urinary-System-Model-6-part-3B-Smart-Anatomy.jpg)
![Muscle Arm Model, 3/4 Life-Size, 6 part - 3B Smart Anatomy, 1000015 [M10], Muscle Models](/thumblibrary/M10/M10_01_140_140_Muscle-Arm-Model-34-Life-Size-6-part-3B-Smart-Anatomy.jpg)
![Muscle Leg Model, 3/4 Life-Size, 9 part - 3B Smart Anatomy, 1000351 [M20], Muscle Models](/thumblibrary/M20/M20_01_140_140_Muscle-Leg-Model-34-Life-Size-9-part-3B-Smart-Anatomy.jpg)
![Ultrasonic Probe, 2 MHz, GS200, 1018618 [U100161], Ultrasound](/thumblibrary/U100161/U100161_01_140_140_Ultrasonic-Probe-2-MHz-GS200.jpg)
![Digital Multimeter P3340, 1002785 [U118091], Hand-held Digital Measuring Instruments](/thumblibrary/U118091/U118091_01_140_140_Digital-Multimeter-P3340.jpg)
![Magnetic Stirrer with Heater (230 V, 50/60 Hz), 1002807 [U11875-230], Magnetic Stirrers](/thumblibrary/U11875-230/U11875-230_01_140_140_Magnetic-Stirrer-with-Heater-230-V-5060-Hz.jpg)
![DC Power Supply 20 V, 5 A
(230 V, 50/60 Hz), 1003312 [U33020-230], Power Supplies](/thumblibrary/U33020-230/U33020-230_01_140_140_DC-Power-Supply-20-V-5-A-230-V-5060-Hz.jpg)
![Thermopile, 1000824 [U8441301], Greenhouse Effect](/thumblibrary/U8441301/U8441301_01_140_140_Thermopile.jpg)
![Half Head Model with Neck, Muscles, Blood Vessels & Nerve Branches - 3B Smart Anatomy, 1000221 [C14], Head Models](/thumblibrary/C14/C14_01_140_140_Half-Head-Model-with-Neck-Muscles-Blood-Vessels-Nerve-Branches-3B-Smart-Anatomy.jpg)
![CT Measuring Trough, 1017785 [U10633], Ultrasound](/thumblibrary/U10633/U10633_01_140_140_CT-Measuring-Trough.jpg)
![Experiment: Seebeck effect (230 V, 50/60 Hz), 8000731 [UE6020500-230], Conduction Phenomena](/thumblibrary/UE6020500-230/UE6020500-230_01_140_140_Experiment-Seebeck-effect-230-V-5060-Hz.jpg)
![Liver Model with Gall Bladder, Pancreas & Duodenum - 3B Smart Anatomy, 1008550 [VE315], Digestive System Models](/thumblibrary/VE315/VE315_01_140_140_Liver-Model-with-Gall-Bladder-Pancreas-Duodenum-3B-Smart-Anatomy.jpg)