Visionstar SAB-500

Cataract and IOL planning services gain most from the formula range. Six named formulae covering SRK-II, SRK-T, Hoffer-Q, Holladay, Binkhorst-II and Haigis span the axial length spectrum, with a system offering one or two constraints that allow eyes to be planned without exporting measurements to a separate calculator. Statistical calculation across readings, with average and standard deviation, and storing 10 results per eye, supports the repeat-measurement discipline biometry requires. Medigear.uk confirms the formula set and constants in writing before any procurement decision.

Ophthalmology clinics use B-scan where the fundus cannot be viewed directly. The manufacturer states that the SAB-500 is used forthe diagnosis of intraocular disease, showing the location, shape,e and extent of a lesion and its relationship with surrounding tissue,a nd lists vitreous opacity, retinal detachment,t and ocular fundus tumours among the conditions assessed. Those are the manufacturer's stated applications, and all image interpretation and clinical decision-making remain with the practitioner.

Services running clinics across multiple rooms or sites benefit from battery operation and self-contained construction. Four hours unplugged removes the need for a free socket at the point of use, and with no separate computer, there is nothing to configure on arrival;. For outreach or domiciliary work, that combination is the difference between a scanner that travels and one that does not.

Practices buildinan evidencece record use the integrated database with multi-keyword case search and a report editor that supports user-defined templates. Medigear.uk confirms backup and export arrangements with the manufacturer, since records held on the instrument need a route into practice systems.

Six IOL Formulae by Name

SRK-II, SRK-T, Hoffer-Q, Holladay, Binkhorst-II and Haigis are all named in the specification rather than described generically. Formula choice varies with axial length, so a range covering short through long eyes lets a service plan without exporting measurements to a separate calculator. Medigear.uk confirms the set and constants in writing.

Four Hours on Battery

Built-in battery operation removes the need for a socket at the point of use, which matters in treatment rooms where outlets are already committed and for outreach clinics where power is uncertain. Battery age affects real runtime over a service life, so Medigear.uk establishes replacement availability alongside the specification.

No Separate Computer to Specify or Maintain

The workstation sits behind the 15-inch touchscreen rather than on a practice-supplied laptop. That removes a compatibility question, a second device from the room and an ageing computer from the upgrade cycle. The software environment is fixed by the manufacturer rather than depending on whatever machine the practice provides.

A-Scan and B-Scan in One Instrument

Biometry and imaging run on the same unit across four display modes, so a B-scan image and an A-scan trace can be shown together. Practices otherwise running separate instruments for each recover both space and cost. Consolidation is worth as much as capability in a clinic room.

Repeat Readings Handled Statistically

Average and standard deviation are calculated across readings with ten results stored per eye, which supports the repeat-measurement discipline biometry requires rather than leaving consistency to be judged by eye. Standard deviation is the measure that tells an operator whether a set of measurements is trustworthy.

Patient Records Held on the Instrument

An integrated database with multi-keyword case search and preset keyword hints keeps records with the scanner rather than requiring export at the point of capture. Medigear.uk confirms backup arrangements and whether the database exports, since records on an instrument need a route into practice systems.

Reporting on Your Own Templates

The report editor supports user-defined templates, so output can be shaped to a practice's existing documentation rather than accepting a fixed format. For services with referral or audit requirements, template control saves reformatting on every report.

Certification and Supply Chain Verified Before Order

This is a diagnostic medical device sold under several brand names across the market. Medigear.uk verifies that the certification is current, valid, and specific to this model, confirms the applicable marking and registration position, and establishes which entity carries the warranty and where service is available. Buyers commit against verified compliance rather than a listing claim.

15 Inch LED Touchscreen, All-in-One

The instrument features a 15-inch LED touchscreen with a built-in workstation, requiring no separate computer. Touch operation removes the keyboard and mouse from a clinical surface.

Four-Hour Built-In Battery

A built-in battery provides around four hours of operation, allowing use without mains power during the examination. Battery specifications and replacement availability have been confirmed with Medigear.uk.

Six IOL Formulae

SRK-II, SRK-T, Hoffer-Q, Holladay, Binkhorst-II and Haigis are provided by name. Formula selection follows axial length and surgeon preference, and the range covers short through long eyes.

A-Scan Depth 40 mm at ±0.05 mm PrecisionThe 

A-scan operates at 10 MHz with LED indication to a to ath of  40 , withithtated precision of ±0.05 mm. Precision at this level is what makes readings usable for implant power calculation.

A-Scan Biometry Measurements

Measurements include anterior chamber depth, lens thickness, vitreous body length, and total axial length, with averaging. These are the inputs to the IOL formulae.

Four Eye Modes

Phakic, aphakic, dense, and various IOL modes allow the system to be set to the presentation rather than applying a single velocity assumption, which directly affects measurement accuracy.

Statistical Calculation and Storage

The average and standard deviation are calculated across readings, with 10 scanning results stored for each eye. Standard deviation indicates how consistent a measurement set is.

B-Scan Depth: 60 mm

B-scan penetrates to 60 mm, covering the axial length of the eye with margin for orbital structures in a single sweep.

B-Scan Frequency: 10 MHz with 20 MHz Optional

The standard probe runs at 10 MHz, with a 20 MHz probe available for higher resolution at reduced penetration. Medigear.uk confirms the optional probe is available in the quotation.

Magnetic-Driven Noiseless Probe

The manufacturer specifies a magnetically driven probe described as noiseless, which matters when examining anxious or paediatric patients, where mechanical noise affects cooperation.

B-Scan Resolution and Geometric Precision

Lateral resolution is 0.3 mm and vertical resolution is 0.2 mm, with geometric position precision of 10 per centt lateral and 5per centnt vertical. These determine the smallest detail that can be distinguished in an image.

Sector Scanning at 53 Degrees with 256 Grey Levels

B-scan uses sector scanning across a 53-degree angle, rendered across 256 grey levels with multi-continuous and real-time magnification available.

Probe Gain: 30 dB to 105 dB

Gain adjusts across a 75 dB range, which is central to distinguishing vitreous opacity from retinal detachment where reflectivity differs subtly.

Vitreous and Retina Enhancement Modes

Enhancement for the vitreous body and retina targets low-reflectivity structures that are hardest to render at standard gain settings.

Four Display Modes

B, B+B, B+A and A modes allow imaging and biometry to be displayed separately or side by side within one examination.

Integrated Patient Database with Case Search

The system holds a patient database with multi-keyword case search and preset keyword hints. Backup and export arrangements are confirmed with the manufacturer.

Report Editor with User-Defined Templates

Reports are generated from user-defined templates, allowing the output to match existing practice documentation rather than a fixed format. Packed dimensions are 350 × 450 × 350 mm, with a gross weight of 10 kg, per Medigear.uk.

The Visionstar SAB-500 Ophthalmic Scanner combines A-scan biometry and B-scan imaging in a self-contained instrument with a 15-inch LED touchscreen, around four hours of battery operation and no separate computer to specify or maintain. Six named IOL formulae covering SRK-II, SRK-T, Hoffer-Q, Holladay, Binkhorst-II and Haigis, statistical calculation across stored readings, 60 mm B-scan depth at 53 degrees and an integrated patient database with a template-driven report editor suit cataract and IOL planning services, ophthalmology clinics assessing the posterior segment, and practices running clinics across more than one site. Because this is a diagnostic medical device sold under several brand names, certification is verified as current and specific to this model, and the applicable marking, registration, warranty routing and service position are confirmed in writing before supply. Contact Medigear.uk for specifications, procurement assistance, or expert consultation.