Sonomed Escalon Mastervu 4500 A Scan Ultrasound | EMS

Sonomed Escalon MasterVu 4500 A-Scan Ultrasound

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The Sonomed Escalon MasterVu 4500 A-Scan Ultrasound from EMS lets ophthalmologists turn office computers into powerful A-scan ultrasound instruments. MasterVu software can be installed on multiple computers, while the scan hardware can easily be packed into its compact carrying case for transport. The A-scan offers five different examination modes, direct contact or immersion A-scan, and has a clinical accuracy of ±0.1mm. Measurements include ACD, Lens, Vitreous, and AXL, with individual zone velocities and average with standard deviation. Choose from two probe styles, Standard for hand-held, immersion, or slit lamp application, and Soft-Touch for hand-held application and minimizing corneal compression.


  • New
Features Specifications Financing
  • Manual or automatic capture
  • Immersion or direct contact
  • Auto calculations
  • Axial length average and standard deviation (up to 5 scans per exam)
  • Standard IOL formulas
  • Post-refractive IOL formulas
  • General Specifications

  • USB connection
  • Touch screen compatible
  • Integrated patient database
  • Intuitive and powerful software
  • Personalized exam reports
  • Scan Modes

  • Direct contact/immersion
  • 5 examination modes:
  • Cataract
  • Dense cataract
  • Aphakic
  • Pseudophakic (5 settings)
  • Manual
  • Review screen for A-scan measurement
  • Measurements

  • ACD, Lens, Vitreous, and AXL
  • Individual zone velocities
  • Average with standard deviations
  • Accuracy & Lens Specs

  • Clinical accuracy: ±0.1mm
  • Electrical accuracy: ±0.032mm
  • Lens calculations in 0.25D increments
  • 1600 Lens database
  • IOL Formulas

  • Standard
  • Binkhorst
  • Regression-II
  • Theoretic/T
  • Holladay
  • Hoffer-Q
  • Haigis
  • Post-refractive IOL Formulas
  • Latkany Myopic Regression
  • Latkany Hyperopic
  • Aramberri Double-K
  • Probe Styles

  • Standard A-scan probe for hand-held, immersion, or slit lamp mounted application
  • Soft-touch A-Scan probe for hand-held use minimizing corneal compression

EMS has partnered with GreatAmerica Financial Services to provide financing to our customers. Headquartered in Cedar Rapids, IA since 1992,
GreatAmerica Financial Services is the largest private independent small ticket equipment finance company in the US. GreatAmerica works with our customers to make purchases as easy as possible with an industry leading customer service experience.

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