Our top pick for 2026 is the Ezer EUS-2600: a portable, all-in-one ophthalmic ultrasound console that ships with a 10 MHz posterior B-scan probe, takes an optional 20 MHz probe for finer detail, and runs from a built-in 12.1-inch touchscreen with no separate computer to buy or maintain. If your practice also needs to image the anterior segment, its sibling, the Ezer EUS-2600 UBM, is the same platform with a 50 MHz ultrasound biomicroscopy (UBM) probe added, so one unit covers both the back and the front of the eye.
B-scan and UBM solve different problems. A posterior B-scan (typically 10 to 20 MHz) lets you see the vitreous, retina, choroid and orbit when dense cataract, hemorrhage or other opacities block the view. UBM (35 to 50 MHz in this guide) trades depth for detail, imaging the angle, iris, ciliary body and lens. The right system depends on which of those you do every week and which you do once a month.
Below we compare seven current systems using specifications published by each manufacturer: two Ezer units built by US Ophthalmic, and competing systems from Sonomed Escalon, DGH Technology, Keeler (Accutome) and ArcScan. Pricing for all of them is quote-based and depends heavily on probe configuration, so we focus on capabilities, workflow and support rather than list prices.
Shopping for ultrasounds? US Ophthalmic is a direct provider of ultrasounds to eye care practices across the US. Tell us how your lane is set up and we will come back with the configurations that fit, plus current availability and lead times.
How to choose a B-scan or UBM system
- Probe frequency matched to your caseload: Posterior B-scan probes here run from 10 to 20 MHz: 10 to 12.5 MHz probes reach the full globe and orbit, while 20 MHz probes trade depth for detail near the posterior pole. UBM runs at 35 to 50 MHz for the anterior segment. Decide which frequencies you will actually use before comparing anything else.
- Image control and review tools: Look for adjustable gain and TGC (including vitreous-specific settings or scan presets) and a cine loop or video capture you can review frame by frame. Subtle findings are often caught on review rather than live.
- Measurement and anterior-segment analysis: Every system here offers calipers for distance and angle. If you size phakic IOLs or follow narrow angles, check for sulcus-to-sulcus tools, automated angle analysis and alignment aids, which vary widely between models.
- Form factor and workflow: Choose between an all-in-one console with its own screen, a USB probe that runs on your Windows laptop, or a dedicated workstation. Consider how many rooms or sites will share the device, footswitch control, and who will manage the computer.
- Upgrade path: Many practices start with a B-scan and add UBM later. Ask whether the platform accepts additional probes, whether software is licensed per workstation, and whether a combined B-scan/UBM configuration costs less than two separate devices.
- Data, reporting and connectivity: Check for PDF reports, standard image and video export, network sharing and DICOM, plus physical outputs such as HDMI. Confirm with your EHR vendor how ultrasound images will be imported before you buy.
- Coupling accessories and local service: UBM needs a water path, whether an immersion shell, scleral shell or disposable probe cover, which affects exam setup and ongoing supply costs. Factor in who repairs probes, how quickly parts arrive, and who trains your technicians.
#1 · Ezer EUS-2600 Ultrasonic A/B Scanner (Ezer)
Best overall B-scan for most practices: a portable, self-contained console with a 10 MHz B-scan probe included and a 20 MHz probe available.
The EUS-2600 is Ezer's portable ultrasound console, and it is our top pick because it puts a capable posterior-segment B-scan into one self-contained unit with no separate PC to buy, configure or secure. It ships with a 10 MHz B-scan probe, for which Ezer lists axial resolution of 0.1 mm or better and lateral resolution of 0.2 mm or better, a 53-degree scan angle, and six-step selectable scan depth from 28 to 60 mm. An optional 20 MHz B-scan probe covers 19 to 40 mm with lateral resolution of 0.15 mm or better, and Ezer positions it for finer detail at the posterior pole and in the orbit. Image control is thorough: 1 to 105 dB gain, default, vitreous-enhanced and customized TGC, 256 gray levels, eight color codes, and a 10-second, 100-frame cine loop with dynamic replay. You operate it from a 12.1-inch touchscreen, a wireless keyboard and mouse, or the footswitch, and you can measure distance, area and angle directly on the image. Ezer quotes on-board storage for more than 20,000 exams, with PDF reports, BMP and AVI export, HDMI and USB 2.0 ports, network folder sharing and an optional DICOM 3.0 package. The kit also includes a 10 MHz A-scan probe.
Pros: All-in-one console with a built-in 12.1-inch touchscreen; no separate computer required · 10 MHz B-scan probe included, with an optional 20 MHz probe for higher lateral resolution · Vitreous-enhanced and customizable TGC, 1 to 105 dB gain and a 10-second, 100-frame cine loop · HDMI, USB 2.0 and video out, PDF reports, BMP/AVI export, optional DICOM 3.0 package · Built by US Ophthalmic's own Ezer brand and supported by its in-house technical and spare-parts departments
Considerations: No UBM probe in this configuration; choose the EUS-2600 UBM for anterior-segment imaging · The 20 MHz probe and DICOM 3.0 package are optional rather than standard · Single built-in 12.1-inch screen (an HDMI output is available for a second display)
Best for: General ophthalmology, optometry and retina-referral practices that want a self-contained posterior B-scan, with room to add a 20 MHz probe.
View the Ezer EUS-2600 Ultrasonic A/B Scanner & request a quote →
#2 · Ezer EUS-2600 UBM Ultrasound Biomicroscope (Ezer)
Best value for B-scan plus UBM in one portable unit: the EUS-2600 platform configured with a 50 MHz biomicroscopy probe.
The EUS-2600 UBM is not a separate design. It is the EUS-2600 platform in its ultrasound biomicroscopy configuration, sold as its own unit. Alongside the standard 10 MHz B-scan and 10 MHz A-scan probes, it adds a 50 MHz UBM transducer for two-dimensional imaging of the anterior segment, including the cornea, ciliary body and anterior chamber angle. Ezer lists two UBM view ports, 8 x 5.7 mm and 16 x 11.5 mm, UBM gain of 1 to 99 dB, and the same 10-second, 100-frame cine loop and 256 gray levels as the base unit. The 10 MHz B-scan keeps its 28 to 60 mm depth range in six selectable steps, with TGC including a vitreous-enhanced mode, and Ezer notes that the optional 20 MHz probe remains available for orbital and lesion imaging. Reports combine B-scan and UBM images with your comments and a customizable dictionary of finding entries, delivered as PDF. Storage steps up to a 500 GB or larger drive, with room for more than 20,000 exams. The tablet-style chassis, 12.1-inch touchscreen, wireless keyboard and mouse, and foot pedal are the same as the B-scan model, so staff trained on one Ezer unit can run the other. Optional accessories include an eye cup and immersion shell.
Pros: Posterior B-scan and 50 MHz UBM in one portable, self-contained unit · Two UBM view ports (8 x 5.7 mm and 16 x 11.5 mm) for wide or close anterior views · Combined B-scan and UBM PDF reports with a customizable finding dictionary · Same interface and accessories as the EUS-2600, which simplifies staff training · Supported by US Ophthalmic's in-house technical and spare-parts departments
Considerations: Single 50 MHz UBM frequency; no 35 MHz option like the VuMAX HD or Scanmate Flex · Ezer does not list automated angle analysis or an ICL-sizing interface, which the VuMAX HD offers · More system than you need if you only perform posterior B-scans
Best for: Glaucoma, cornea and refractive practices that need anterior-segment UBM alongside a posterior B-scan without buying two systems.
View the Ezer EUS-2600 UBM Ultrasound Biomicroscope & request a quote →
#3 · VuMAX HD (Sonomed Escalon)
Best premium console for UBM-heavy and ICL-sizing practices, with the deepest anterior-segment software toolset in this guide.
Sonomed Escalon places the VuMAX HD at the top of its ultrasound lineup, and the feature list backs that up for practices that work in the anterior segment every day. It can be configured as a B-scan, UBM, A-scan or any combination, with a choice of 12 or 20 MHz posterior B-probes and 35 or 50 MHz UBM transducers. Each sweep uses 256 rays with 2,048 sample points per ray, video clips run at up to 20 frames per second, and you can review them at full speed, in slow motion or frame by frame. The B-scan side offers four presets: orbit, vitreous body, retina surface and deep retina/choroid. The UBM side is where it stands apart, with an angle-detail scan setting, automated quantitative angle analysis, sulcus-to-sulcus measurement, UBM AI features (Eye Tracking, Align Assist and Auto Capture) and a direct interface to the ICLguru sizing tool. A UBM scan cap kit is compatible with ClearScan covers for direct-contact UBM scanning. Images display on a large low-glare HD flat-panel monitor, and connectivity covers dual-band Wi-Fi, Ethernet, USB, Bluetooth and DICOM. The system is built around a base unit and separate monitor, so it suits a dedicated imaging room better than a device that travels between lanes.
Pros: 35 or 50 MHz UBM and 12 or 20 MHz B-scan probe choices · Automated angle analysis, sulcus-to-sulcus tools, UBM AI alignment aids and ICLguru interface · Four B-scan presets and frame-by-frame video review at up to 20 frames per second · Broad connectivity: dual-band Wi-Fi, Ethernet, USB, Bluetooth and DICOM
Considerations: Base unit plus external monitor takes more room than a tablet-style or USB-probe system · Feature depth adds training time if you mainly need occasional posterior B-scans · Many probe and module combinations, so the final configuration takes careful scoping
Best for: High-volume refractive, glaucoma and anterior-segment practices doing frequent ICL sizing and angle assessment.
#4 · Scanmate Flex (DGH Technology)
Best modular PC-based platform: one battery-powered base that runs any mix of B-scan, UBM and A-scan probes.
DGH's Scanmate Flex is a compact base unit that connects to a Windows computer over USB 2.0 and runs any combination of B-scan, UBM and A-scan probes, with configurations including B, B/UBM, A/B, A/B/UBM and UBM only. The B-scan probe comes in 12.5 or 20 MHz, scans 256 lines over 60 degrees, and DGH lists depth of field of 14 to 37 mm and 15 to 35 mm respectively. The removable UBM probe is offered at 35 or 50 MHz with a 30-degree scan, and DGH publishes nominal axial and lateral resolution of 50 microns for the 50 MHz version. UBM scans use a water path inside a single-use sterile ClearScan probe cover, which DGH notes is the only component that touches the eye. An internal rechargeable lithium-ion battery and a carrying case that holds both the Flex and a tablet PC make it practical for practices covering several sites. The Scanmate software is offered under an unrestricted license, so it can be installed on multiple workstations or run as a networked system, with near, mid and far gain controls, distance, area and angle tools, and PDF reports. You supply and maintain the Windows PC, which adds an IT step that all-in-one consoles avoid.
Pros: Mix-and-match B-scan, UBM and A-scan probes on one base unit · Published UBM specs: 35 or 50 MHz, 30-degree scan, 50-micron nominal resolution at 50 MHz · Internal rechargeable battery and a case designed for multi-site use · Unrestricted software license for multiple workstations or networked use
Considerations: Requires a Windows 10 or later computer that meets DGH's minimum hardware specification · UBM relies on single-use ClearScan probe covers, an ongoing consumable · No built-in display; on-screen image quality depends on the computer you pair it with
Best for: Multi-location practices and mobile clinicians who want a configurable, battery-powered system and already manage Windows hardware.
#5 · Accutome B-Scan Plus (Keeler (Accutome))
Best laptop-based posterior B-scan: a single USB probe that turns a Windows PC into a portable imaging station.
The Accutome B-Scan Plus, now sold by Keeler, is a USB B-scan probe that runs Keeler Connect software on a Windows laptop or desktop. It works at 12 or 15 MHz with a 60-degree scanning angle, 256 vectors per frame and 2,048 sample points per line. Keeler lists axial resolution of 0.015 mm, electronic lateral resolution of 0.085 mm, a field of view of 64 mm at 12 MHz or 52 mm at 15 MHz, electronic gain of 0 to 112 dB with TGC, and frame rates of 15 or 30 per second. Film loops are adjustable from 2 to 17 seconds, gain can be adjusted on frozen images, and Smooth Zoom gives a 2x full-image zoom. The software includes 12 measuring calipers (six lines, two areas, two angles and two arrows), scan labeling, auto-print, PDF reporting, EMR export, network archiving and DICOM readiness. The probe itself weighs 6 oz, and the kit adds a probe holder, footswitch, wireless mouse and gel. Because the probe also works with Keeler's 4Sight console, a practice can start on a laptop and move to a combined platform later. As with any PC-based probe, the computer's display, storage and security are yours to manage, and anterior-segment work needs the separate UBM Plus.
Pros: Very portable: one 6 oz USB probe and a Windows laptop · 12 or 15 MHz with a 60-degree scan, 0 to 112 dB gain and adjustable 2 to 17 second film loops · 12 measuring calipers, PDF reporting, EMR export and DICOM readiness · Probe carries over to Keeler's 4Sight platform
Considerations: Depends on your own Windows computer for display, storage and security · Posterior B-scan only; UBM requires the separate UBM Plus probe · No 20 MHz option listed, unlike the EUS-2600, VuMAX HD or Scanmate Flex
Best for: Optometry and ophthalmology practices that need B-scans across several rooms or locations and prefer a laptop workflow.
#6 · Accutome UBM Plus (Keeler (Accutome))
Best stand-alone UBM probe for practices that already run a PC-based Keeler B-scan.
The Accutome UBM Plus is Keeler's 48 MHz ultrasound biomicroscopy probe for the anterior segment, which Keeler lists as covering the cornea, iris, ciliary body, zonules, crystalline lens and intraocular lens. It plugs into a Windows laptop or desktop and is also compatible with the 4Sight console, and it uses the same modality and similar measuring calipers as the B-Scan Plus, so staff do not need to learn a second interface. The software includes tools for sulcus-to-sulcus, anterior chamber depth, intraocular lens position and filtration angle measurements, with adjustable video loops, gain control before, during or after the scan, PDF reporting, EMR export, network archiving and DICOM readiness. Keeler highlights a focal zone guide to help users find the right scanning technique, a guarded tip to protect the patient and the probe, and an all-in-one probe design that it says eliminates signal loss. The kit ships in a travel case with a USB footswitch, software, probe holder, wireless mouse and 18 mm and 20 mm immersion shells. It is a focused tool: a single frequency, no posterior imaging on its own, and no automated angle analysis or ICL-sizing interface listed, so practices wanting those features usually look at consoles such as the VuMAX HD.
Pros: 48 MHz UBM in a portable USB probe · Measurement tools for sulcus-to-sulcus, ACD, IOL position and filtration angle · Focal zone guide and guarded tip; 18 mm and 20 mm immersion shells included · Same software and workflow as the B-Scan Plus; works on a laptop or a 4Sight
Considerations: Anterior segment only; needs the B-Scan Plus or a 4Sight for posterior imaging · Single frequency, with no 35 MHz option · No automated angle analysis or ICL-sizing interface listed
Best for: Practices that already use the Keeler B-Scan Plus or 4Sight and want to add anterior-segment UBM.
#7 · Insight 100 (ArcScan)
Best specialist anterior-segment system for refractive centers focused on ICL sizing, but not a replacement for a B-scan.
The ArcScan Insight 100 takes a very different approach from handheld UBM. The patient sits at the instrument and looks through a disposable EyeSeal while an ultra-high-frequency ultrasound transducer moves in an arc that follows the curvature of the anterior eye. ArcScan says this robotic, computer-directed scanning gives operators control of the X, Y and Z axes for repeatable results. Its software offers scan sets for epithelial mapping, keratoconus risk identification, ICL sizing data and coronal scans, along with measurement of anterior chamber depth, angle-to-angle width and sulcus-to-sulcus width, and imaging of pathologic structures such as solid masses and cysts. The system has four main components: the instrument module, the Insight software package, a fluidics module and an electronics unit. ArcScan reports that experienced operators typically need 5 to 10 minutes of seat time, and onboarding includes hands-on training and support from its clinical applications team. The product page describes anterior-segment imaging only and does not publish transducer frequency or resolution figures, so a practice would still need a conventional B-scan for posterior work. Its workstation footprint makes it a fit for high-volume refractive centers rather than general clinics.
Pros: Robotic arc scanning designed for repeatable anterior-segment imaging · Scan sets for epithelial mapping, keratoconus risk, ICL sizing data and coronal views · Seated patient position with a disposable EyeSeal interface · Hands-on training and clinical applications support
Considerations: Anterior segment only; no posterior B-scan · Dedicated workstation with separate fluidics and electronics modules · Transducer frequency and resolution are not published on the product page · Ongoing EyeSeal disposables
Best for: Refractive surgery centers with a high volume of phakic IOL (ICL) evaluations.
Feature comparison
| Model | Format | Posterior B-scan | UBM (anterior segment) | Other modes | Display / host | Data and connectivity | Carried by US Ophthalmic |
|---|---|---|---|---|---|---|---|
| Ezer EUS-2600 | Portable all-in-one console | 10 MHz included (53 degrees, 28-60 mm); 20 MHz optional (19-40 mm) | — | A-scan probe included | Built-in 12.1-in touchscreen; wireless keyboard and mouse; footswitch | HDMI, USB 2.0, video out; PDF, BMP/AVI; optional DICOM 3.0; 20,000+ exams | Yes |
| Ezer EUS-2600 UBM | Portable all-in-one console | 10 MHz included (28-60 mm); 20 MHz optional | 50 MHz; 8 x 5.7 mm and 16 x 11.5 mm view ports | A-scan probe included | Built-in 12.1-in touchscreen; wireless keyboard and mouse; foot pedal | HDMI, USB 2.0, video out; combined PDF reports; 500 GB+ drive; 20,000+ exams | Yes |
| Sonomed Escalon VuMAX HD | Base unit with separate HD monitor | 12 or 20 MHz; 4 presets | 35 or 50 MHz; angle analysis, UBM AI, ICLguru interface | A-scan (configurable) | Large low-glare HD flat-panel monitor | Dual-band Wi-Fi, Ethernet, USB, Bluetooth, DICOM | No |
| DGH Scanmate Flex | Battery-powered USB base + Windows PC | 12.5 or 20 MHz; 60 degrees; 14-37 / 15-35 mm depth of field | 35 or 50 MHz; 30 degrees; ClearScan water path | A-scan (configurable) | Your Windows PC or tablet | USB 2.0; networkable database; PDF; EMR/EHR-compatible export | No |
| Keeler Accutome B-Scan Plus | USB probe + Windows PC | 12 or 15 MHz; 60 degrees; 64 / 52 mm field of view | — (separate UBM Plus) | — | Your Windows PC; 4Sight compatible | PDF, EMR export, DICOM ready, network archive | No |
| Keeler Accutome UBM Plus | USB probe + Windows PC | — (separate B-Scan Plus) | 48 MHz; 18 and 20 mm immersion shells | — | Your Windows PC; 4Sight compatible | PDF, EMR export, DICOM ready, network archive | No |
| ArcScan Insight 100 | Robotic seated workstation | — | Ultra-high-frequency robotic arc scan (frequency not published) | Epithelial mapping and ICL sizing data scan sets | Workstation (instrument, fluidics and electronics modules) | — | No |
Why it’s our top pick
Ezer is US Ophthalmic's own brand. We manufacture the EUS-2600 and EUS-2600 UBM, so the team that configures and quotes your system is the same team that supports it afterward. New equipment ships with a US warranty, and our in-house technical and repair department and dedicated spare-parts department handle service questions, probes, accessories and troubleshooting directly rather than through a third party.
Because pricing is quote-based, we can build the configuration your caseload actually calls for: a B-scan-only EUS-2600, an EUS-2600 with the optional 20 MHz probe, or the EUS-2600 UBM with its 50 MHz biomicroscopy probe, plus options such as the DICOM 3.0 package, eye cup, immersion shell or video thermal printer. If your practice is built around automated ICL-sizing software, we will say so plainly, because the right fit matters more than the sale.
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Send us your requirements and our equipment specialists will come back with a configuration built around how your practice actually works — including availability and lead time. US Ophthalmic is a direct provider to eye care practices nationwide.
Frequently asked questions
What is UBM in ophthalmology? Ultrasound biomicroscopy (UBM) is high-frequency ophthalmic ultrasound used to image the anterior segment. A standard posterior B-scan runs at roughly 10 to 20 MHz; the UBM probes in this guide run at 35 to 50 MHz (48 MHz for the Keeler UBM Plus), trading penetration depth for much finer detail of the cornea, angle, iris, ciliary body and lens. Practices use it for angle assessment, iris and ciliary body lesions, and sulcus-to-sulcus measurement before phakic IOL surgery, including structures hidden behind the iris that optical imaging cannot reach.
What is a B-scan ultrasound used for in an eye practice? A B-scan produces a cross-sectional image of the posterior segment and orbit. Its main value is imaging when you cannot see in: dense cataract, vitreous hemorrhage or other media opacities. Practices use it to evaluate the vitreous and retina, retinal and vitreous detachments, intraocular masses, the optic nerve and orbital structures. A 10 or 12 MHz probe covers the full globe and orbit; a 20 MHz probe gives finer detail with a shallower range (on the EUS-2600, 19 to 40 mm versus 28 to 60 mm at 10 MHz).
Do I need separate machines for B-scan and UBM? Not necessarily. The Ezer EUS-2600 UBM, Sonomed Escalon VuMAX HD and DGH Scanmate Flex can all run a posterior B-scan and UBM from one system. Keeler sells the B-Scan Plus and UBM Plus as separate USB probes that share software and can also run on its 4Sight console. The ArcScan Insight 100 is anterior-segment only, so it would sit alongside a B-scan rather than replace one.
Is the EUS-2600 UBM a different machine from the EUS-2600? It is the same Ezer EUS-2600 platform, sold as its own configuration. The UBM version adds a 50 MHz biomicroscopy probe to the 10 MHz B-scan and 10 MHz A-scan probes, comes with a 500 GB or larger drive (versus 320 GB or larger on the standard unit), and produces combined B-scan and UBM reports. If you already own an EUS-2600 and are considering UBM, ask our team which options apply to your unit.
Should I choose an all-in-one console or a USB probe that runs on a laptop? An all-in-one console such as the EUS-2600 has its own screen, storage and controls, so there is no computer to buy, update or secure, and it is ready the moment it is switched on. USB systems such as the Keeler B-Scan Plus or DGH Scanmate Flex are very portable and let you reuse existing Windows hardware, but image display, storage and IT security depend on that computer. Practices that share one device across several sites often prefer USB; practices with a dedicated imaging lane often prefer a console.
How do B-scan and UBM images get into my EHR? Most systems here export standard files and reports. The EUS-2600 saves images and video as BMP and AVI, creates PDF reports, supports network folder sharing and offers an optional DICOM 3.0 package. The VuMAX HD lists DICOM and network connectivity, Keeler lists EMR export and DICOM readiness, and DGH exports EMR/EHR-compatible records. Confirm the exact import method with your EHR vendor before you order.
How much does an ophthalmic B-scan or UBM system cost? Cost depends mostly on configuration: how many probes and frequencies you need, whether you add UBM, and options such as DICOM software or printers. Because of that, US Ophthalmic quotes each Ezer system individually. Request a quote with the exams you perform most often and we will recommend the configuration that fits.
The verdict
For most practices, the Ezer EUS-2600 is the strongest overall choice in 2026: a self-contained, portable B-scan with a well-specified 10 MHz probe, an optional 20 MHz probe, solid image controls and practical reporting, backed by US Ophthalmic's in-house service and parts teams. If you also image the anterior segment, the EUS-2600 UBM adds a 50 MHz probe on the same platform, which is usually simpler than running two separate devices.
The alternatives each win in a specific scenario. The Sonomed Escalon VuMAX HD is the pick for high-volume ICL sizing and automated angle analysis, the DGH Scanmate Flex suits multi-site practices that want a modular, battery-powered USB system, Keeler's B-Scan Plus and UBM Plus suit laptop-centered workflows, and the ArcScan Insight 100 is a specialist anterior-segment tool for refractive centers. Match the probe frequencies and workflow to your weekly caseload, then compare service and support.
