1.Classic appearance, professional technology, precise measurement, easy and convenient operating, and best price value
2.All the lens are anti-reflection coated. Cross-Cylinder lens are Manus lens
3.New leveling mechanismFingertip adjustment for sphere power control
4.Unique new convergence system mechanism Wide range of auxiliary lens combinations Precision machined to finest tolerances
5.This is suitable for eyesight examination in spectacles shops, department of ophthalmology in hospitals, schools
وصف
Sphere Power Range +16.75 to -19.00 diopters Step 0.25 diopters Range 0.00 to -6.00 diopters(0.00 to -8.00 diopters with additional lens of -2.00 diopters) Cylinder Power Step 0.25 diopters