[ 保健常識 ] 隱形眼鏡的疑問

Question

我買新的隱形眼鏡

她瓶子上有 BC: 8.8 和 DP: -9.00

代表什麼?

Answer 1

Favorite Answer

BC:8.8 -> 表示矯正後最佳視力敏銳度

DP:-9.00-->表示鏡片的屈光度

BVCA (best corrected visual acuity) The best possible vision a person can achieve with corrective lenses measured in terms of Snellen lines on an eye chart. Contact lenses frequently achieve 20/15 vision, superior resolution to most surgeries and eyeglasses.

diopter

A measurement of the refractive power of a lens element, as a portion of a meter. If a camera lens is focused on infinity, and a +1 diopter accessory lens is attached to the front, the camera will now have sharp focus at 1 meter, even though the barrel of the lens is still set to infinity.

If a +1/2 diopter is used, the focus is shifted to 2 meters.

If a +1/4 diopter is used, the focus is shifted to 4 meters.

If a +2 diopter is used, the focus is shifted to 1/2 meter.

If a +3 diopter is used, the focus is shifted to 1/3 meter.

這是有關光學的名詞解釋網頁

http://www.hydrooptix.com/glossary.htm

順便提供有關隱形眼鏡的保健資訊

http://www.pohai.org.tw/med/contents/9004.htm

http://www.cibavision.com.tw/products/contact_lens...

Source(s): 網路