- Adjustable frame that holds trial lenses used during retinoscopy or refraction tests on the eye
- Simple trial frame is used with a retinoscope to determine refractive errors
- Distinguished for their high performance, their superior quality, and durability
- Manufactured with premium quality raw-material and modern technology by the experienced professionals
- Tested by quality experts under the guidance of quality measures
It is suitable for eyesight examination in spectacles shops, departments of ophthalmology in hospitals, schools, and enterprises. Detailed Product Description: PD adjustable range (10 specification): 52mm, 54mm, 56mm, 58mm, 60mm, 62mm, 64mm, 66mm, 68mm, 70mm. Axial calibration on each disc:165°～0°～180°～25° axis graduation line runs counter-clockwise along axis graduation line of lens frame, with an interval of graduation line being 5°. The degree that the front lens rotates around the optic axis inside the lens frame:360°. Frame temple is fixed.
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