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How to Order Prescription
Secondly please click the "select lens(with prescription)" button. Choose "Single Vision" if you have no ADD on your prescription. If you have ADD on your prescription please choose "Progressive" button. According to your prescription, choose the correct SPH CYL AXIS PD (ADD) for your OD(Right) and OD(Left). Choose the lens you want Choose the lense index for your lense. Finally please check the data... -
How To Measure Segment Height
What is segment height for progressive lenses? Segment height for progressive lenses refers to the vertical distance from the bottom of your lens to the centre of your pupil. How do you measure it? To measure your segment height, you need your glasses frames, a ruler and a mirror. Unlike pupillary distance (PD), segment height depends on the glasses frame you're wearing because different frames can have different lens... -
Bluelight Protect Lens
Blue ray exists everywhere today As the widespread use of smartphones, tablet devices and computers increases the time we face a screen, more and more people suffer from eyestrain symptoms. One cause of this is believed to be the blue light emitted from the display on such devices. Blue ray will cause diffusion and flickering in the vision The shorter the wavelength, the stronger...