High-curve spectacles are in ever greater demand, featuring outstanding fashionability and comfort of fit.
The significant tilting of the optical axis of this lens in respect of the line of vision produces "prism error," "mean power error" and "astigmatism" and causes eyestrain, sensations of swaying and blurring, under/over-correction and discomfort in binocular vision.
Caused by mean power error and astigmatism occurring across the entire lens
Caused by mean power error and astigmatism occurring at the lens centre
Caused by prism error occurring at the lens centre
|SEIKO||near sight, far sight and astigmatism||Widetech||
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