Tomey AL-4000 User Manual

䕔 4-10
IOL
acdaxlvit
vitvitacdacd
V
Th
ttt
tV
Th
tV
Lp
2
22
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4.2.4 IOL eye
[Default setting for acoustic velocity at delivery
(changeable)]
- IOL acoustic velocity (reference)
Acrylic: 2,200 m/s
Silicone: 1,049 m/s
PMMA: 2,718 m/s
* 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 depth
: Time for measuring a vitreous
Lp
Th
IOL
V
acd
V
vit
V
axl
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acd
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vit
t

Tomey AL-4000 Specifications

General

Brand	Tomey
Model	AL-4000
Category	Measuring Instruments
Language	English