Description

2 lenses with opposite axial refractive power, used for astigmatism. . Place the cross cylindrical on the cylindrical money to make an axis coincide with the cylindrical axis, and then reverse the cross cylindrical to rotate the axis 90 degrees

Feature

- Color: As shown.
- Material: Copper and Glass.
- Size: About 10.8*3.8*0.4cm.
- Made of copper and glass material.
- Handle Length: About 70mm.
- When correcting the axial direction, the two axes of the cross cylindrical lenses can be placed at 45 degrees of the cylindrical lenses.

- Use for Optometry.
- and .

2 * Cross Cylinder Lens

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