ophthalmic phoropter

{"cid":"91190363","title":"Fully Sealed Ophthalmic Phoropter 330*400*100mm Dimension With Light GD8704A","imgUrl":"https:\/\/img.ismap.com\/nimg\/22\/d3\/a9c65e8e0f53f02d233025de0561-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"KESHILONG","Model Number":"GD8704A","Minimum Order Quantity":"1pcs","Delivery Time":"10-20 work days","Certification":"CE, FDA","Place of Origin":"China","Payment Terms":"L\/C, T\/T, Western Union","Supply Ability":"300pcs\/month","Color":"Black or White for option","Quality":"Top-grade quality","Sphere powers":"+16.75D to-19.00D","Cylinder power range":"0 to-6.00D","Astigmatic axis scale":"0 to 180\u00b0 in 5\u00b0 steps","Cross cylinder":"\u00b10.25D","Rotary prism":"0 to 20D in 1D step","PD":"50~78MM"}}