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. 2016 Sep 27;10:1865–1875. doi: 10.2147/OPTH.S99535

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© 2016 Silverman. This work is published and licensed by Dove Medical Press Limited

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Top: biometric immersion A-scan. Bottom: Immersion B-scan with axial length determination on an eye with dense cataract and axial high-myopia.

Notes: Top: The arrow indicates position of anterior cornea, and the double arrow indicates anterior to posterior of the lens. Note the internal lens echoes consistent with the cataract. K-values (upper right) together with axial length are used for the determination of lens implant power. Bottom: Note the separate speed of sound values used for anterior chamber, lens, and vitreous.

Abbreviations: AXL, axial length; ACD, anterior chamber depth; AC, anterior chamber; L, lens; V, vitreous; TL, total length.