Huanyu Retinoscope Schematic Eye Model Eye for Retinoscopy Practice Optometry Teaching Tool for Optical Retinoscopy Range of the Diopter 500D to 400D

ACCURATE DIOPTER The diopter of our schematic eye is accurate with an error of less than 025 Unit D Its adjustable range is plus 400D to minus 500D 3 PUPIL SIZES Our model eye has three difficulty levels with different pupil sizesdiameter3 diameter5 diameter7 which can simulate small pupils ordinary pupils and dilated pupils PRECISE AND CLEAR AXIAL ANGLE Degree of astigmatism axial angle disk 0 to180 degrees each line represents 5 degrees and all are accurate and clear ADJUSTABLE ANGLE The angle of our model eye can be adjusted more than 90 degrees by adjusting the shaft screw which is suitable for practitioners of different heights to practice and operate 3 LAYERS OF ARC GROOVES There are three layers of arc grooves in the front of our schematic eye which can be used to place optometric lenses or preset astigmatism and axial cylinders