Prescription adjustment for wrap lens by EYE.hk 

彎鏡屈光度數修正和適應
 

There are more and more curved wrap design eyewear frames in the market. There is a common symptom of the wearer regarding the adaptation to those wrap eyewear frames, such as fatigue, eyestrain and blur vision. In optics, it is due to the tilted manner the visual axis passing through the wrap lenses. That induces some image aberration called "oblique astigmatism". 

市面上出現愈來愈多的弧形設計眼鏡框，常有配戴者遇上適應的問題，如疲倦和視力糢糊。其實，這些都是因為當眼睛的視線傾斜穿過鏡片後產生"斜軸散光"(oblique astigmatism")像差 (aberration)所引至。
 

Traditionally, optometrist may suggest wearer to flatten the curve or wrap angle of the frames to minimize the impact of the aberration. However, that will cause negative influence on the appearance and protection of the original design of the eyewear.

傳統上，眼科視光師會建議配戴者減低鏡框的弧度以減少因視線傾斜穿過鏡片所產生的視覺問題。但是，這往往對鏡框原來設計的美觀性和保護性帶來負面的影響。

In our center, we will use state of the art equipment to measure the tilting and wrap angle of the eyewear. The data will be send to optical laboratory for improve of the peripheral optical performance of the lenses. That will ensure wearer the greatest performance with the eyewear.

​事實上，這個問題在數學上和光學上是可被修正的。經過數學計算和使用專門的驗眼儀器，修正後的"彎鏡屈光度數"可提供配戴清楚和的舒適的視覺體驗