Optical Trial Lens Frame Optometry Eye Test, Adjustable PD Lightweight Frame, Test Glasses Optician Accessories

[Lightweight] The light weight of the optometry frame, with a net weight of approximately 75 grams / 2.6 ounces, means that it does not feel heavy or uncomfortably compressed when worn. [Multi Application] The optometry frame is widely used for visual examinations in opticians, hospitals, ophthalmology, schools, factories and mines. It is a very practical accessory for vision testing. [Multi Adjustment Knobs] The optician's frame contains several knobs to adjust pupil distance, nose pads, temples, etc. to ensure that the user can wear them comfortably. [PD Adjustment Range] PD 48~80mm adjustment range for both eyes of the trial frame; left and right PD24~40mm adjustment range; minimum graduation value: 1mm. [360° Rotation] The optical trial frame has lenses that rotate 360° around the optical axis inside the frame and features a high-quality professional design for greater flexibility of use.