Calculations

Question 1

To calculate BVP always use

Answer 1

K = F/ 1-dF

Question 2

Base curve (BOZR) in mm

Answer 2

Base curve (BOZR) = corneal curvature in MM

Is curvature of the central cornea, typical measured in mm.

normal range is from 7.6 to 8.6 mm

e.g. In keratometry reading is 7.8mm ten BOZR is 7.8mm

Question 3

Base curve in Diopters

Answer 3

BOZR (D) = 1/base curve (mm) x 1000