Tomey UD-800 - Page 56

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1) Entry boxes (2) for the acoustic velocities required for the eye currently
selected appear. Enter the converted acoustic velocity using the software
keyboard.
2) After entry, touch the “Enter” key to move to the next entry box. Also, by
touching the “Incorporate in L” button (3) or the “Incorporate in R” button (4),
the data entered will be applied to the other eye.
3) Touch the “Initial Setting” button (5) to enter the initial settings.
4) Touch the "OK” button (6) to apply the entry and return to the Setup
(Ultrasound Axial) screen. Touch the “Cancel” button (7) to discard the entry
and return to the Setup (Ultrasound Axial) screen with the previous sonic
velocity still set.
(Initial setting and setting range of converted acoustic velocity)
● Phakic eye
Average acoustic velocity for
axial length
: 1,550m/s, 1,500 - 1,600m/s
Crystal lens acoustic velocity
: 1,641m/s, 1,540 - 1,740m/s
Anterior chamber depth acoustic
velocity
: 1,532 m/s, 1,430 - 1,630m/s
Vitreous acoustic velocity
(divisional velocity only)
: 1,532 m/s, 800 - 2,000 m/s
● Dense cataract eye
Average acoustic velocity for
axial length
: 1,548m/s, 1,500 - 1,600m/s
Crystal lens acoustic velocity
: 1,629m/s, 1,540 - 1,740m/s
Anterior chamber depth acoustic
velocity
: 1,532 m/s, 1,430 - 1,630m/s
● Aphakic eye
Average acoustic velocity for
axial length
: 1,532 m/s, 1,430 - 1,630m/s
● IOL eye
Implanted lens
acoustic velocity
(Acryl)
: 2,200m/s, 800 - 3,000m/s
(Silicon)
: 1,049m/s, 800 - 3,000m/s
(PMMA)
: 2,718m/s, 800 - 3,000m/s
Anterior chamber depth acoustic
velocity
: 1,532 m/s, 1,460 - 1,630m/s
Vitreous acoustic velocity
: 1,532 m/s, 800 - 2,000 m/s
IOL thickness
(Acryl)
: 0.80 mm, 0.10 - 4.00 mm
(Silicon)
: 1.00mm, 0.10 - 4.00 mm
(PMMA)
: 0.80 mm, 0.10 - 4.00 mm