Phoropter of Optometry Equipment

Phoropter, Comprehensive Optometry Device, Vision testerUses: This device is applicable to ophthalmology department of hospitals and spectacle stores for precision measurement of visual functions such as myopia, hyperopia, astigmatism, eyesight balance, heterophoria, stereoscopic vision and eyesight amalgamation. Characters of the Product: Unique design of butterfly-shape appearance. Capable of checking up all-sided visual functions, accurate and comfortable in measurement. Exquisite manufacturing technique, with comfortable feel. High grade plated-film used in all optic lenses. 1, Sphere power: Range: +1675D~-19.00DStep: 0.25D or 0.12When applied with +0.12D auxiliary lens or optional +/126.75D to -29D(when optional +/-10D lens is in use)Step: 0.12D2, Cylinder power: Range: 0~-6.00DWhen applied with auxiliary cylinder lens -2.00D: 0~-8.00DStep: 0.25DWhen applied with auxiliary cylinder lens +0.12DStep: 0.12D3, Cylinder axis: Range: 0~180° Step: 5° 4, Cross cylinder: ± 0.25D5, Rotary prism: Range: 0~20DStep: 1D6, PD adjustment: 48~80mmStep: 1mm7, Convergence adjustment: ∞ , 400mm(When PD 64mm)From the vertexes of the corneas (2mm each for right and left inward interpupillary distance enabing convergence=57mm to 80mm, 2mm forward and 5mm backward from standard plane; With scale 19mm