Optical Retinoscope Eye Model, Optometry Teaching Tool Refractive Eye Exercise Simulator, Adjustable Viewing Angle, for Optometry Teaching Eye Training Practice Tool

Optical Schematic Refraction Eye Model Practice Training Eye Refraction Checker Fake Glasses Testing Equipment For Teaching Name: Retinoscopy Simulation Training Eye Dioptric adjustment range: +4.00D~-5.00D Pupil diaphragm: 3, 5, 7 Purpose: simulated optometry practice Colour: Black Weight: 448g Dimensions: height 135mm, bottom diameter 74mm Package list: 1 * Retinoscopy Simulation Training Eye

• 【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.
• 【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. Easy and flexible to operate.
• 【3-layer curved groove】There are 3 layers of curved grooves for lens placement, which can be used to place prescription lenses or "cylindrical lenses" with preset "astigmatism" power and axial direction.
• 【Accurate and Clear Axis Angle】The astigmatism axial position disk scale ranges from 0 to 180°, and each small division is 5°. suitable for practitioners of different heights to practice and operate.
• 【Adjustable Angle】The angle of our model's eyes can be adjusted to more than 90 degrees by adjusting the axis screw. It can be looked down, upward or downward. It is suitable for practitioners of different heights to practice and operate. Only adjust the "axis screw" when necessary.