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✓ Certified Professional Seller Visionstar VT-100
Visionstar VT-100
Visionstar VT-100
Visionstar VT-100
Visionstar VT-100
Visionstar ENT, Ophthalmic & Sensory

Visionstar VT-100

Test at the distance the patient actually works.

Working distance from 35 to 70 cm in 5 cm steps — so screens, benches and music stands get refracted where they really sit. Behind that, -29.00 to +26.75D sphere, cylinder to 8.75D, three cross cylinder options and a fast sphere disk moving 3.00D at a turn.

Sections
Phoropters
Categories
ENT, Ophthalmic & Sensory
Condition
New
Origin
China
Seller Type
Certified Professional Seller
CE & ISO Certified
Global Shipping
Supplier: Medigear
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The Visionstar VT-100 is an automated phoropter distinguished by two things: an exceptionally wide power range, and unusually granular control over working distance. Spherical power spans -29.00D to +26.75D — a 55.75-dioptre range — selectable in 0.25D, 0.5D, 1D, 2D or 3D steps. Cylinder covers 0.00 to 8.75D in the same five increments. Those figures place aphakic, high myopic, post-graft and high-astigmatic refractions inside the instrument rather than sending them to a trial frame.

Working distance adjusts from 35 cm to 70 cm in 5 cm steps. This is the specification that separates the VT-100 from most refractor heads, which offer two fixed near settings and nothing between. Modern visual tasks do not sit at 40 cm; a monitor is typically 55 to 70 cm from the eye, a workbench somewhere near 50, sheet music around 65. Being able to refract at the actual working distance — rather than at 40 cm and adjusting by reasoning — makes occupational and intermediate prescribing substantially more direct.

Three cross cylinder configurations are available: a 0.25D Jackson cross cylinder, a 0.50D Jackson cross cylinder and a 0.25D dual cross cylinder with separation prism. Having both 0.25D and 0.50D available matters clinically, since 0.50D gives a clearer difference for patients who struggle to discriminate the finer flip, particularly those with reduced acuity or cognitive difficulty.

Cylinder axis reads 0–180° with five step sizes — 1°, 5°, 15°, 30° and 45° — so coarse bracketing and fine refinement both happen without leaving the control. Prism covers 0–20Δ with steps down to 0.1Δ. Pupillary distance adjusts 48–80 mm for distance and 45–75 mm for near, the lower near figure accommodating narrow-PD patients that some instruments exclude. The auxiliary complement includes a Φ1 mm pinhole lens, red Maddox horizontal right and vertical left, red and green filters, Polaroid at 135°/45° and 45°/135°, separation prisms of 6Δ base up right and 10Δ base in left, retinoscopy lenses at +1.5D and +2.0D for 67 cm and 50 cm, and a 0.50D fixed cross cylinder for presbyopic near addition. A sphere fast-rotating disk moves 3.00D in a single action. Medigear.uk supplies the VT-100 with pre-despatch functional inspection and documentation review.

Occupational and intermediate prescribing is where this instrument separates itself. UK employers are required to arrange eye and eyesight tests for display screen equipment users on request, and to fund corrective appliances where these are needed specifically for screen work. That population is large and its visual requirement is genuinely different from conventional reading — a monitor commonly sits 55 to 70 cm from the eye, well beyond the 40 cm at which most phoropters offer near testing. Refracting at the actual working distance rather than adapting from 40 cm produces a prescription that works when the patient sits down at their desk.

The same applies across occupations with defined near demands. Musicians reading from a stand at around 65 cm, dentists and surgeons working at fixed operating distance, machinists at a bench, and laboratory staff at a microscope all have a specific intermediate requirement that a general reading addition serves poorly. Practices building an occupational or corporate eyecare offer have a concrete technical basis for it here.

The wide power range serves a second population. Sphere to -29.00D and +26.75D covers aphakic refraction, high myopia and complex post-surgical cases, while cylinder to 8.75D handles keratoconus under correction, post-graft astigmatism and high corneal astigmatism after cataract surgery. Hospital eye service departments, corneal clinics and specialist contact lens practices see these disproportionately, and keeping the refraction in the lane is faster and more comfortable than trial frame work for patients already facing long appointments.

Three cross cylinder options support patients who struggle with fine discrimination — reduced acuity, cataract, cognitive difficulty or fatigue — by allowing the clinician to present a 0.50D rather than 0.25D comparison. Practices should note the standing access limitation: a phoropter head requires an upright seated patient able to reach it, so young children and patients unable to hold position still need trial frame refraction alongside.

Refraction at the real working distance

Adjustment from 35 to 70 cm in 5 cm steps lets the near or intermediate refraction happen where the patient's task actually sits, rather than at a fixed 40 cm with the clinician reasoning towards the real requirement. Occupational prescriptions work first time more often as a result.

A technical basis for occupational eyecare

Display screen equipment users, musicians, dentists and machinists all have defined intermediate demands. An instrument that refracts at their actual distance gives a practice a concrete capability to build a corporate or occupational service around, rather than a general claim.

Power range that keeps complex cases in the lane

Sphere across 55.75 dioptres and cylinder to 8.75D means aphakia, high myopia, post-graft astigmatism and complex post-surgical refractions stay on the instrument instead of moving to trial frame and loose lenses.

The fast disk makes the range workable

A control moving 3.00D in a single action is what stops a 55-dioptre range from becoming tedious in practice. Without it, high-power work involves a great deal of dialling; with it, the range is usable at clinic pace.

Cross cylinder choice for difficult discriminators

Offering 0.50D as well as 0.25D Jackson cross cylinder gives a clearer flip comparison for patients with reduced acuity, cataract, cognitive difficulty or end-of-appointment fatigue. The refinement step stops being the point where the examination stalls.

Five axis step sizes

Coarse 45°, 30° and 15° steps locate the meridian quickly when starting without objective data, while 5° and 1° handle refinement. Clinicians working at different paces through the sequence are all accommodated.

Accommodates narrow pupillary distances

Near PD down to 45 mm and distance PD to 48 mm brings paediatric and small-featured adult patients within range at near, where instruments with a higher floor simply exclude them.

Fine prism resolution

Prism to 20Δ with a 0.1Δ minimum step is finer than most trial prism sets, which matters for careful phoria measurement and for prescribing small stabilising prisms where the difference is perceptible to the patient.

Complete auxiliary complement

Pinhole, Maddox rods, red-green and Polaroid filters, separation prisms, retinoscopy lenses and a presbyopic cross cylinder are all built in, so binocular vision assessment proceeds without reaching for a separate trial lens set.

Spherical power -29.00D to +26.75D

Sphere spans 55.75 dioptres in total, among the widest ranges available on a refractor head, covering aphakic, high myopic and complex post-surgical prescriptions.

Cylinder to 8.75D

Cylinder power reaches 8.75D, exceeding the 6.00D typical of refractor heads and accommodating keratoconus under correction, post-graft astigmatism and high corneal astigmatism.

Five power step sizes

Sphere and cylinder both adjust in 0.25D, 0.5D, 1D, 2D or 3D increments, allowing rapid coarse movement and fine endpoint refinement from the same control.

Sphere fast rotating disk

A dedicated control shifts spherical power by 3.00D in a single action, keeping high-power refraction practical at clinic pace.

Working distance 35–70 cm in 5 cm steps

Working distance adjusts across eight settings from 35 cm to 70 cm, allowing near and intermediate refraction at the patient's actual task distance rather than a fixed near setting.

Cylinder axis 0–180° with five step sizes

Axis adjusts in 1°, 5°, 15°, 30° or 45° increments, supporting quick meridian location and precise endpoint refinement without changing control.

Three Jackson cross cylinder options

A 0.25D Jackson cross cylinder, a 0.50D Jackson cross cylinder and a 0.25D dual cross cylinder with separation prism cover standard refinement, difficult discriminators and dissociated near addition technique.

Prism 0–20Δ at 0.1Δ resolution

Prism covers 0 to 20 prism dioptres with steps of 0.1Δ, 0.2Δ, 0.5Δ, 1Δ or 2Δ, supporting fine phoria measurement and precise prism prescribing.

Pupillary distance 48–80 mm far, 45–75 mm near

Distance and near pupillary distance adjust independently in 0.5 mm or 1.0 mm steps, with a 45 mm near floor accommodating narrow-PD patients.

Φ1 mm pinhole lens

A 1 mm pinhole aperture is built in for distinguishing refractive from pathological causes of reduced acuity without fitting an external lens.

Red Maddox rods

Red Maddox rods are provided horizontal right and vertical left for phoria measurement in both meridians.

Red and green filters

Red right and green left filters support duochrome testing and binocular balance within the standard sequence.

Polaroid filters

Polarising filters at 135° and 45° right and 45° and 135° left support polarised binocular vision and stereopsis testing.

Separation prisms

Dissociating prisms of 6Δ base up right and 10Δ base in left are built in for von Graefe phoria measurement.

Retinoscopy lenses at two distances

Retinoscopy lenses of +1.5D and +2.0D correspond to 67 cm and 50 cm measuring distances, covering both common retinoscopy working positions.

0.50D presbyopic cross cylinder

A fixed 0.50D cross cylinder supports near addition determination by the fused cross cylinder technique.

Contoured slim housing

The head is built on a contoured profile that sits less obtrusively in front of the patient and preserves the clinician's view during the subjective sequence.

The Visionstar VT-100 pairs an exceptionally wide power range with the most granular working distance control in its class. Sphere from -29.00D to +26.75D and cylinder to 8.75D keep aphakic, high myopic, high astigmatic and post-surgical refractions in the lane, while a sphere fast-rotating disk moving 3.00D per action keeps that range workable at clinic pace. Working distance adjustable from 35 to 70 cm in 5 cm steps allows near and intermediate refraction at the patient's actual task distance, which makes the instrument particularly well suited to occupational and display screen equipment work alongside general community optometry. Three Jackson cross cylinder options, five axis step sizes, 0.1Δ prism resolution and a full auxiliary lens complement complete a specification aimed at practices wanting genuine clinical headroom. Physical dimensions and power supply are unpublished for this model and should be confirmed at enquiry, and practices with significant paediatric or accessibility caseloads should retain trial frame refraction alongside. Medigear.uk supplies the VT-100 into the UK with pre-despatch functional inspection, documentation review and ongoing support. Contact the Medigear.uk team for current pricing, full specifications, refraction unit and arm compatibility, or bespoke configuration enquiries.

FAQ

Frequently Asked Questions

Everything buyers need to know about sourcing medical equipment through MediGear.

Because near vision is no longer a single distance. A patient's screen sits at perhaps 60 cm, their keyboard at 45, printed matter at 35, a music stand at 65. A phoropter offering only 40 cm and 67 cm forces the clinician to refract at one of those and reason towards the real requirement. Adjustment in 5 cm steps from 35 to 70 cm lets the refraction happen where the task actually is, which produces occupational and intermediate prescriptions that work first time.

Presbyopic patients with specific occupational demands: display screen equipment users, musicians, dentists and surgeons, machinists, and anyone whose principal near task is not reading at conventional distance. Employers are required to arrange eye tests for display screen equipment users on request, and a prescription refracted at the actual screen distance is a substantially better outcome than one adapted from 40 cm.

Sphere runs -29.00D to +26.75D and cylinder 0.00 to 8.75D, both selectable in five step sizes. That is among the widest ranges available on a refractor head and covers aphakia, high myopia, high corneal astigmatism, post-graft refraction and complex post-surgical cases that would otherwise need a trial frame.

A control that shifts spherical power by 3.00D in a single movement rather than stepping through in smaller increments. On a high prescription this saves a genuinely tedious amount of dialling, and it is the reason a 55-dioptre range remains practical to work through rather than becoming an endurance test.

The 0.25D Jackson cross cylinder is the standard tool for refining cylinder power and axis. The 0.50D version presents a larger difference between the two flip positions, which helps patients who cannot reliably discriminate the finer comparison — reduced acuity, cataract, cognitive difficulty or simply fatigue late in a long examination. The 0.25D dual cross cylinder with separation prism supports dissociated cross cylinder technique for near addition. Having all three avoids compromising the refinement step.

Axis adjusts in 1°, 5°, 15°, 30° or 45° increments. The coarse steps are for locating the approximate meridian quickly, particularly when starting without objective data; the 1° step is for the endpoint. Five options is more than most heads offer and suits clinicians who work at different paces through the sequence.

Better than many. Near PD adjusts down to 45 mm and distance PD to 48 mm, which accommodates paediatric and small-featured adult patients that instruments with a higher floor exclude at near. The patient still needs to sit upright at the head, so this widens the range without removing the general phoropter limitation.

A Φ1 mm pinhole, red Maddox rods horizontal right and vertical left, red and green filters for duochrome and binocular balance, Polaroid filters at 135°/45° and 45°/135°, separation prisms of 6Δ base up right and 10Δ base in left, retinoscopy lenses of +1.5D and +2.0D for 67 cm and 50 cm working distances, and a 0.50D fixed cross cylinder for presbyopic near addition.

The head mounts to a refraction unit arm or a dedicated phoropter stand — it is not free-standing. Mounting interfaces vary between manufacturers, so the arm or unit it will hang from must be confirmed before order. Practices without an existing refraction unit will need a stand or combined chair-and-stand specified alongside; Medigear.uk can quote for that at the same time.

The manufacturer literature supplied for this model gives measurement specifications but not physical dimensions, weight or power supply. Request those figures in writing at enquiry, particularly if lane clearance is tight or if UK voltage configuration needs confirming before order.

A phoropter is a non-invasive ophthalmic measuring instrument, most consistently classified as Class I under the UK Medical Devices Regulations 2002, or higher where configuration dictates. Manufacturer CE marking is noted where it appears in the product literature; Medigear.uk confirms CE marking, the declaration of conformity and current UKCA status against the shipping batch at quotation rather than asserting it in advance.

Routine care is cleaning of lens apertures and patient contact surfaces with manufacturer-approved agents — confirm approved products at order rather than defaulting to alcohol wipes. Because lens changes are motorised, the lens drive mechanism is the meaningful long-term service consideration, so agree a documented service interval at purchase. Typical warranty in this class is 12 to 24 months against manufacturing defect, confirmed in writing at quotation.