translation.en: Maybe there is -- the solution to the cost could be in productivity, maybe in efficiency, in the clinical process, or in how much they pay for the lenses or consumables, or regulations, their defensive practice.
translation.zh: 也许 降低成本的方法就在生产效率里， 也许在高效里，在诊所的过程里， 或者在他们能支付多贵的镜片里， 或条例里，或者在实践里。