Visslo F8 premier Operation Manual page 20

3. 2. The input of grinding conditions
3.2.1.Standard lens
: The vertical distance between optical center and frame center
: The shortest vertical distance from optical center to
outline of lens shape
: The crossing distance from optical center to the lowest point of
the bottom of lens shape
: The crossing distance from optical center to the lowest point of
the bottom of nasal points
MN : 70.00 MN : 70.00
MN : MN : 70.00 70.00