Description
Package List
2 * Cross Cylinder Lens
Characteristics
– Size: About 10.8*3.8*0.4cm Test Tool.
– Handle Length: About 70mm Optical Instruments.
– Material: Copper and Glass.
– and Diopters.
– Made of copper and glass material Cross Cylinder Lens.
– Use for Optometry Cylinder Lens Tool.
– ColorSilver
– When correcting the axial direction, the two axes of the cross cylindrical lenses can be placed at 45 degrees of the cylindrical lenses.
Goods Information
Cross Cylinder Lens Place the cross cylindrical lens on the cylindrical lens money to make with the cylindrical lens , and then reverse the cross cylindrical lens to rotate the 90 degrees. Test Tool 2 lenses with opposite axial refractive power, usually used for astigmatism