Sonomed Resources - Tissue Velocity References

A-Scan Resources

uuuImmersion Scanning

uuuA-Scan Tips and Techniques

uuuPost-Refractive A-Scans

uuuTissue Velocity References

uuuTable of IOL Constants for the Holladay Formula

uuuRecommended Training Courses

Tissue Velocity References

The velocity of sound through various structures is presented for reference in the table below. Users have the ability to customize tissue velocities when using Sonomed A-scans (systems have default values, which are listed within the user manual).

Structure
u
Cornea
u
Anterior Chamber
u
Crystalline Lens
u
Cataractous Lens
u
Vitreous
u
PMMA IOL
u
Acrylic Lens
u
Silicone IOL
u
Silicone Oil

Tissue Velocity [m/s]
u
1641
u
1532
u
1640
u
1629
u
1532
u
2718
u
2120
u
1049
u
980

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