Tomey UD-800 Instruction Manual page 128


 
P L z 1000 na

d
■ 4-2
L
ACD : Anterior chamber depth (mm)
REF : Target Ref. after surgery (D)
V
P
a1
a2
* The HAIGIS optimized formula uses the registered a0, a1, and
a2 for calculation.
3. Personal A-Constant

A

A
Where:
 
  
2
P L z 1000 na

Z
DC
AREF : Refractive power of eye after surgery (D)
: Axial length
: Vertex distance (mm)
= 12
: Implanted IOL power (D)
: 0.4···*
: 0.1···*
   
d a 1 ACD a 2 L
. 0 62467
 
  
d L a 2 . 0 139 a 1
. 0 62467


2   
4 P z 1000 L na

2 P z
AREF

DC

AREF V

1
1000
 

1000 nc 1

r

72 . 434
(ACD≠0)
  
. 0 241 a 1 72 . 434
(ACD=0)
    
z 1000 L na P


2 2
1000 na