Tomey UD-800 Instruction Manual page 132

■ 4-6
AG = 12.5L / 23.45
AG > 13.5 → AG = 13.5
3. Personal SF
  
SF { BQ BQ
Where:
AQ = (nc-1) - 0.001AREF {V(nc - 1) - r}
BQ = 0.001AREF {L2•V(nc - 1) - r(L2 - V•na)}
- {L2(nc - 1) + na•r}
CQ1 = 0.001AREF[V{na•r - L2(nc - -1)} + L2•r]
CQ2 = 1000na{na•r – L2(nc - 1) - CQ1}/P
CQ3 = L2•na•r-0.001AREF•L2•V•r•na
CQ = CQ3-CQ2
AREF : Refractive power of eye after surgery (D)
4. Corresponding SF
SF = 0.5663A - 65.60
or
SF = 0.9704 ACDcon – 3.595
Where:
A : A-Constant
 
 
2
4 AQ ･ CQ ｝ / 2 AQ C 2