Optical Retino Schematic Refraction Eye Model Practice Training Eye Refraction Checker F12 20 Dropsh

Standard retina has accurate color reproduction with the corresponding physical dimension focal length ratio. Ametropia (-a + 4.00D 5.00D), you can put any power on it to train by inculding the lens cylinder. 3 difficulty levels with change in pupil size (3, 5, 7mm), switchable by small, general and mydriatic simulation. 3 layers of walls for arc refraction lenses or definition of different degrees of astigmatism and axial cylinder. Degree of axial astigmatism disc angle is 0 ~ 180 °, ible support with height adjustment. Eye refraction checker only, other acceories demo in the ture is not included!

Specification: Type: Eye Refraction Checker Material: Optical lenses, Metals, Plastics Diopter adjustment range: 9.00D Pupil diaphragm:φ3, φ5, φ7 Applications: Refractive examination, eye test, practice Features: Refractive examination, eye refraction check, beginner, practice, recommended adjustment, easy to operate Dimension: app.13.5x7.5cm/5.31x2.95in Color: Black Quantity: 1 Pc

Note: Due to the difference between different monitors, the ture may not reflect the actual color of the item. Thank you!

Package includes: 1 Pc x Eye Refraction Checker

About shping
Shping and Pack All it will be double checked and well packed before sending.It will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for e areas,it may take a little longer). 

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