Description
This exact unit sold recently — but we specialize in sourcing refurbished ophthalmic equipment. Typical turnaround is 2–4 weeks once we confirm availability with our partners. Request a free quote with no deposit required.
Request Availability → Free quote · No obligation · 90-day warranty when shipped
What’s Included
- Sonomed E-Z Scan AB5500+ main unit
- A-scan probe
- B-scan probe
- Foot pedal
- Power cable
- 90-day Digital Eye Center warranty
Condition & Warranty
Used. Tested and confirmed in good working order; the unit has been cleaned and both A-scan and B-scan modes were verified functional. Some cosmetic signs of prior clinical use are visible in the product photos. Covered by a 90-day Digital Eye Center warranty on parts and workmanship.
Sonomed E-Z Scan AB5500+ — Used A/B Ophthalmic Ultrasound
The Sonomed E-Z Scan AB5500+ is a portable, combined A-scan and B-scan ophthalmic ultrasound system built on Sonomed Escalon’s long track record in ophthalmic biometry. A 6.5-inch color touch screen handles full alphanumeric data entry and live image display in a compact 5.25 lb chassis, and the adjustable legs tilt from 0° to 60° for tabletop or slit-lamp-adjacent workflows. For a cataract or comprehensive practice that needs reliable axial-length biometry without the cost of a new optical unit, a used Sonomed E-Z Scan AB5500+ is a practical, well-supported choice.
The A-scan measures axial length at an electronic accuracy of ±0.023mm (±0.10mm clinical), with individual zone velocities and movable gates for anterior chamber depth, lens thickness, and vitreous chamber. It supports contact (solid-tip / soft-touch) and immersion techniques and includes multiple built-in IOL power formulas — Holladay, Regression II, Theoretic/T, Binkhorst, Hoffer-Q, and Haigis — covering cataract, dense-cataract, aphakic, and pseudophakic eyes. The B-scan delivers 30 frames per second at 0.15mm tissue resolution with 100 dB logarithmic / linear / S-curve gain control and continuous 0.5×–2.0× zoom with joystick pan.
The National Library of Medicine describes ultrasound biometry as a core method for measuring axial length in intraocular lens power calculation, particularly where dense cataract or media opacity limits optical biometry.
Why Practices Choose the Sonomed E-Z Scan AB5500+
- Combined A/B in one unit — axial-length biometry and diagnostic B-scan imaging from a single portable instrument, with both probes included.
- Works through dense media — contact and immersion A-scan measures eyes where optical biometry fails on mature cataract or vitreous opacity.
- Immersion capable — reduces corneal compression error for tighter, more repeatable axial-length readings.
- Multiple IOL formulas — Holladay, Regression II, Theoretic/T, Binkhorst, Hoffer-Q, and Haigis for a wide range of surgical planning cases.
- Touch-screen operation — 6.5-inch color display with full alphanumeric entry keeps the exam workflow simple.
- Truly portable — 5.25 lb with 0°–60° tilt legs for tabletop or mobile-clinic use.
- Video output — RS-170 BNC feeds a video printer or remote display for documentation.
Clinical Applications
- Axial-length biometry and IOL power calculation for cataract surgery planning.
- Biometry in dense-cataract, mature, or media-opacity eyes where optical biometers cannot fixate.
- B-scan assessment of the posterior segment behind opaque media (vitreous hemorrhage, dense cataract).
- Evaluation of retinal detachment, intraocular masses, and foreign bodies.
- Anterior chamber depth and lens thickness measurement for surgical work-up.
Who This Is For
- Cataract and comprehensive ophthalmology practices needing dependable contact/immersion biometry.
- Surgery centers that require ultrasound biometry as a backup to optical systems.
- Practices adding diagnostic B-scan capability alongside axial-length measurement.
- Mobile and satellite clinics that need a compact, portable A/B unit.
Technical Specifications
| Spec | Detail |
| Modalities | Combined A-scan and B-scan ophthalmic ultrasound |
| Display | 6.5″ TFT active-matrix color LCD, 640×480 px |
| Interface | Touch screen, full alphanumeric entry |
| A-scan probe | 10 MHz focused; contact (solid-tip / soft-touch) and immersion |
| A-scan accuracy | Electronic ±0.023mm / Clinical ±0.10mm |
| A-scan range | Auto 18–33mm / Manual 0.5–35mm |
| IOL formulas | Holladay, Regression II, Theoretic/T, Binkhorst, Hoffer-Q, Haigis |
| B-scan probe | 10 MHz focused transducer, 30 frames/sec |
| B-scan gain | 100 dB; Log / Linear / S-curve + TVG |
| B-scan zoom | Continuous 0.5×–2.0× with joystick pan |
| Tissue resolution | 0.15mm optimal |
| Video output | RS-170 BNC (video printer / remote viewing) |
| Weight | 5.25 lb; legs tilt 0°–60° |
| Dimensions | 12.5″W × 3.25″H × 10.0″D |
| Condition | Used |
| Warranty | 90-day Digital Eye Center warranty |
Considering optical biometry as well? Compare with the Zeiss IOL Master 5.5 Optical Biometer and the Zeiss IOL Master 500 Optical Biometer — optical units for clear-media eyes that pair well with ultrasound biometry for dense cataracts.
Questions about the Sonomed E-Z Scan AB5500+? Contact us for availability and shipping details.
