Tomey UD-800 - Page 143

4-17 ■
IOL
acdaxlvit
vitvitacdacd
V
Th
ttt
tV
Th
tV
Lp
2
22





* The acoustic velocity varies depending on materials, makers, and
temperature.
- Vitreous acoustic velocity : 1,532 m/s
- Anterior chamber depth acoustic velocity : 1,532 m/s
The axial length measurement is obtained using the following
formulae.
: Axial length measurement
: Center thickness of IOL (entered by user)
: IOL acoustic velocity
: Anterior chamber depth acoustic velocity
: Vitreous acoustic velocity
: Measurement time
: Time for measuring anterior chamber death
: Time for measuring a vitreous
acd
V
vit
V
acd
t
vit
t
Lp
Th
axl
t
IOL
V