- ☑ Adjustable interpupillary distance：Eye Optometry Trial Lens Frame The adjustable range of interpupillary distance of both eyes is 48 ~ 80 mm, the left and right interpupillary distance is 24 ~ 40 mm, the maximum scale is 1 mm and the adjustable range of single eye is 24 ~ 40 mm.
- ☑ Eye distance measurement：It has the function of inter-eye distance measurement ruler, and the distance from the innermost lens to the corneal vertex can be accurately calculated by testing the ruler on the frame.
- ☑ Adjustable pupil height：Through the pupil height adjustment knob on the test frame, it can be adjusted according to the pupil needs of different subjects.
- ☑ Ultralight trial frame：50g ophthalmic titanium can insert 5 lenses at the same time, 3 lenses in the front and 2 lenses in the back; improve the convenience of optometry and not much weight when using.
- ☑ Adjustable Optical Optic Trial Lens Frame：The anterograde angle of the test frame can be adjusted according to the different face shapes of customers, and the length of the temples can be adjusted, the scale is accurate and the calculation is convenient.
Optometric Universal Lens Trial Frame is suitable for eyesight examination in spectacles shops, department of ophthalmology in hospitals, schools and enterprises. ▶Interpupillary distance adjustment range: the interpupillary distance range of both eyes is 48~80mm; the left and right interpupillary distances are 24~40mm; the minimum scale value is 1mm ▶The axis scale of the indexing plate: the left indexing plate is 130°~0°~120°, the right indexing plate is 50°~180°~60°. 5° ▶Frame effective inner aperture: 33.5mm ▶The number of lenses that can be inserted into the left and right frames: 5 (front 3 and rear 2) ▶The degree of rotation of the optical axis of the lens in the inner circle of the frame: 360° ▶Non-parallelism between the optical axis of the lens and the geometric axis of the frame: ≤2.5° ▶Inconcentricity between the optical center and the geometric center of the lens: ≤0.5mm ▶The displacement of the lens relative to the geometric center of the frame: ≤0.3mm ▶Adjustment range of nose pads: Adjustable length: 0~26mm Angle: any angle ▶The adjustable length range of left and right temple feet: 0~30mm ▶Weight 53g Package: 1x Trial Frame
