Visionstar SW-1000

Biometry and Pachymetry Together

One console covers axial length measurement and corneal thickness, so a department running both examinations does not need two instruments or two stations to do it.

10MHz Biometry Probe

The biometry probe measures across 15 to 40 millimetres to a precision of plus or minus 0.05 millimetres, with a built-in fixation light helping the patient hold steady gaze.

Six Lens Power Formulas

SRK-II, SRK-T, Binkhorst II, Holladay, Hoffer Q and Haigis are all provided, so a surgeon can apply whichever formula suits the eye in front of them rather than accepting one default.

Immersion and Contact Methods

Both techniques are supported, allowing a department to continue with its established practice instead of changing technique to accommodate new equipment.

Four Eye Modes

Phakic, aphakic, dense and various intraocular lens settings adapt the measurement to the condition of the eye, which matters where a dense cataract alters how sound travels.

20MHz Corneal Probe at 45 Degrees

The corneal probe resolves to 5 micrometres across 150 to 1500 micrometres, and its angled tip makes positioning against the cornea more straightforward.

Twenty Reading Averaging and Map Mode

Each group averages 20 measurements for reliability, and results present in single mode or as a map showing thickness across several measured positions.

Pedal Control and Built-In Printer

Curve freezing runs manually or automatically under pedal control, leaving both hands free, and a thermal printer produces waveforms and calculation sheets at the station.

Cataract Surgery Planning

Lens power selection depends on accurate axial length, and a precision of plus or minus 0.05 millimetres across a 15 to 40 millimetre range supports that requirement directly. Providing six established formulas rather than one lets the surgeon match the calculation to the eye, which matters particularly at the extremes of axial length where formulas diverge. Anterior chamber depth and lens thickness are reported alongside, feeding the calculations that need them.

Corneal Assessment and Glaucoma Clinics

Corneal thickness carries weight in glaucoma assessment because it influences how applanation pressure readings should be interpreted. A 20MHz probe resolving to 5 micrometres, with each group averaged from 20 readings, provides that measurement reliably. Map mode shows thickness across several positions rather than a single central figure, which suits assessment where regional variation is relevant. Interpretation of those readings remains a matter for the treating clinician.

Refractive and Pre-Operative Screening

Corneal thickness measurement forms part of assessment before corneal refractive procedures, and the 150 to 1500 micrometre range covers what such screening requires. Combining that with biometry in one console means a pre-operative workup happens at a single station, shortening the patient pathway and reducing the equipment a clinic must find room for. Suitability for any particular procedure remains a clinical decision.

Dense Cataract and Complex Eyes

Eyes with dense lens opacity are precisely where optical biometry struggles and ultrasound retains its place. A dedicated dense eye mode adapts measurement to those conditions, and immersion technique is available where contact measurement would risk corneal compression affecting the reading. Aphakic and pseudophakic modes extend the same coverage to previously operated eyes.

Two Instruments in One Console

Departments needing both biometry and pachymetry usually buy separately, occupying two positions and two budgets. Combining them addresses both, and the practical gain is a pre-operative workup completed at one station without moving the patient between rooms. For clinics where space is the binding constraint rather than money, that consolidation is often what makes a service possible at all. One console also means one maintenance arrangement rather than two.

Formula Choice Left With the Surgeon

Offering six lens formulas rather than imposing one recognises that no single formula performs best across every eye. Surgeons develop preferences based on their own outcomes and on the axial lengths they encounter, and an instrument that accommodates those preferences supports better refractive results than one that does not. Recording which formula produced a given result also supports later audit of refractive outcomes across a surgeon's own caseload.

Results Available Immediately

A built-in thermal printer produces the waveform and calculation sheet at the station, so results are reviewed and filed while the patient is still present. Pedal-controlled curve freezing keeps both hands available during measurement, which matters when one is steadying the probe and the other the patient. Entering the patient name and identifier keeps each printout attached to the right record from the outset.

The SW-1000 addresses a common situation in ophthalmic practice: two ultrasound examinations routinely needed together, usually requiring two instruments. Biometry through a 10MHz probe measures axial length to plus or minus 0.05 millimetres across a 15 to 40 millimetre range, reporting anterior chamber depth, lens thickness and vitreous length alongside, while a 20MHz probe resolves corneal thickness to 5 micrometres.

Lens calculation is properly supported. Six established formulas covering SRK-II, SRK-T, Binkhorst II, Holladay, Hoffer Q and Haigis let a surgeon apply whichever suits the eye, with four eye modes adapting measurement to phakic, aphakic, dense and pseudophakic conditions, and both immersion and contact techniques available.

A macula lutea trace function assists alignment during biometry, and map mode presents corneal thickness across several positions. Practical handling has been considered. A colour touchscreen drives the instrument, pedal-controlled curve freezing keeps both hands free, a built-in thermal printer produces waveforms and calculation sheets at the station, and readings store against patient name and identifier.

The instrument comes in biometry-only, pachymetry-only and combined configurations. Medigear.uk supplies the SW-1000 as a verified medical equipment supplier and will confirm which configuration applies, along with probe content, software, mains configuration, condition and accessory content. Contact the team to discuss specification and arrange a quotation.