LHQYA Optical Retinoscope Eye Model, Optical Retinoscopy Optometry Teaching Tool, Axis Angle Disk Degree: 0~180°/Diopter is +4.00D to -5.00D, for Students

LHQYA Optical Retinoscope Eye Model, Optical Retinoscopy Optometry Teaching Tool, Axis Angle Disk Degree: 0~180°/Diopter is +4.00D to -5.00D, for Students

• Accurate and Clear Axis Angle: The astigmatism axial position disk scale ranges from 0 to 180°, and each small division is 5°.
• Accurate Diopter: Our eye refraction is accurate with an error of less than 0.25 units D. Its adjustable range is +4.00D to -5.00D.
• 3 Pupil Sizes: Our model eyes have three difficulty levels with different pupil sizes: φ3, φ5, φ7, which can simulate small pupils, normal pupils and enlarged pupils.
• Easy To Use : Simulated design is more convenient to practice optometry, easy and flexible to operate. Degree of astigmatism axial angle disk: 0~180 degree.
• Retinoscope Practice : Coordinate with the retinoscope practice, simulate real eye. There is scale on the lens-barrel which represents different ametropia.