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Visionstar ACP-7
Visionstar ACP-7
Visionstar ACP-7
Visionstar ACP-7
Visionstar ENT, Ophthalmic & Sensory

Visionstar ACP-7

Product Code: EOAS-OAVT-2699

Some patients cannot read a letter. They still need a measurement.

Built for the patients who cannot name a letter. The ACP-7 carries picture and tumbling E optotypes alongside letters and numbers, isolates down to a single target, aims on ball joints, and runs a 20 W LED at 50 VA on UK mains.

Sections
Chart Projectors
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 ACP-7 is an LED auto chart projector whose chart complement is built around a problem letters cannot solve. A significant share of patients in any UK practice cannot name a letter on demand: preschool children, children with speech or learning difficulties, patients with dementia, and adults who do not read Latin script. The manufacturer's own chart illustration shows four optotype rows — English letters, numbers, tumbling E, and children's pictures — which between them cover almost everyone who walks through the door.

Tumbling E asks the patient to indicate which way the arms point rather than to name anything, so it works across language barriers and with pre-literate children. Picture optotypes work younger still. Neither is a lesser test; both are the recognised approach where letter naming is not available, and having them projected rather than held on a card means the same testing distance and the same illumination as every other chart.

Isolation is handled through four display modes rather than a mechanical mask plate: the whole chart, a single line, a single row, and a single target. Contour interaction makes a letter within a line harder to resolve than the same letter alone, and that difference is diagnostically significant — crowding is a recognised feature of amblyopia. Being able to step from full chart to single target in one control makes that comparison routine.

The tilt mechanism uses ball joints rather than a fixed-axis hinge, which gives free aiming in any direction. Where a projector must be mounted somewhere awkward — a shelf off to one side, a high bracket, an arm at an angle — free aiming solves what a two-axis tilt cannot.

The light source is a 6V 20W LED with no halogen alternative, so there is no lamp to replace, less heat in a small room, and a service life measured in years rather than hours. Projection runs from 2.0 to 7.0 metres with 5 metres standard, giving 30× magnification and a 330 × 225 mm image. Icon selection averages 0.3 seconds. Auto-standby engages after 3 to 10 minutes. The unit measures 364 × 240 × 240 mm at 6 kg, and the manufacturer offers chart variants A, B, C, D and F — the set appropriate to UK acuity notation must be specified at order. Medigear.uk supplies the ACP-7 with pre-despatch functional inspection and documentation review.

Paediatric practice is the primary application, and the reason is straightforward: a preschool child cannot name letters, but their vision still needs measuring. Picture optotypes work with children who can recognise and name a familiar object, and tumbling E works with slightly older children who can indicate a direction without speaking. Both are projected at the same distance and illumination as the letter charts, which makes the result comparable with everything else in the record. Practices seeing children, running school or special educational needs screening, or monitoring amblyopia therapy over time use these charts continually.

Communication-limited adult patients are the second group, and often the overlooked one. Patients with dementia may lose letter naming while retaining useful vision. Patients following a stroke may have expressive difficulty. And in a country where a substantial minority of patients read a script other than Latin, or read no script at all, a letter chart measures literacy as much as acuity. Tumbling E asks only for a direction.

Amblyopia assessment uses the four display modes directly. Comparing acuity on the full chart against a single isolated optotype separates a genuine resolution limit from a crowding effect, and an amblyopic eye characteristically performs disproportionately worse when crowded. Stepping between whole chart, single line, single row and single target from one control makes that comparison part of the routine rather than an extra procedure.

Installation flexibility comes from the ball joints and the low power draw. Free aiming in any direction accommodates mounting positions that a fixed-axis tilt cannot, and 50 VA on a 20 W LED means very little heat in the closed consulting rooms typical of UK practice. Two points belong in the decision: icon selection averages 0.3 seconds, a perceptible pause at high adult throughput, and the chart variant must be confirmed as containing both UK-appropriate optotypes and the paediatric rows if those are the reason for the purchase.

Measures the patients letters cannot reach

Preschool children, patients with speech or cognitive difficulty, and adults who do not read Latin script all need an acuity measurement. Picture and tumbling E optotypes provide one, using the same projected distance and illumination as every other chart.

No language barrier

Tumbling E asks only which way the arms point. It works regardless of the patient's first language or literacy, which matters in any practice serving a diverse population and removes a real source of measurement error.

Crowding comparison in one control

Stepping from whole chart to single target isolates an optotype instantly. Comparing crowded against isolated acuity distinguishes a true resolution limit from a crowding effect — routine information in amblyopia work that a single measurement cannot give.

Free aiming on ball joints

A ball joint aims in any direction at once rather than along fixed axes, which makes off-centre shelves, high brackets and angled arm mountings workable instead of merely tolerable.

No lamp to replace, ever

The LED light source removes lamp sourcing, stocking and replacement from the maintenance schedule entirely, and removes the risk of a lamp failing mid-clinic.

Runs cool in a closed room

Twenty watts at 50 VA generates very little heat, which is a genuine comfort benefit in the small, closed consulting rooms typical of UK premises and a practical one for equipment sitting nearby.

UK mains without adaptation

The AC 220–240V specification covers UK mains at 230V nominal directly, so no step-down transformer or special variant is required. Confirm the plug, but the voltage is right.

Four optotype types in one instrument

Letters, numbers, tumbling E and pictures are all projected from the same unit, so the clinician moves between them without changing equipment or testing distance.

Light host, light remote

Six kilograms for the projector and 180 grams for the remote make mounting straightforward on any table, shelf, stand or projector-rated arm, and the handset comfortable to hold through a full list.

Thirty-two icon selections

The projector carries 32 selectable icons covering acuity rows, astigmatic targets, red-green filters and specialist charts across four optotype systems.

Picture optotypes for young children

Children's picture charts allow acuity measurement in patients too young to name letters, using recognition of familiar objects instead.

Tumbling E optotypes

Tumbling E charts require only that the patient indicate a direction, making measurement possible across language barriers and with pre-literate or non-verbal patients.

Letter and number charts

Conventional letter and number acuity rows are included alongside the paediatric optotypes for patients who can name them.

Four display isolation modes

Whole chart, single line, single row and single target modes allow progressive isolation of optotypes for crowding assessment and to hold attention.

Red/green filter

A red/green filter supports duochrome refinement of the spherical endpoint and red-green dissociation testing.

Ball joint tilt mechanism

Ball joints allow free aiming of the projected image in any direction, accommodating mounting positions that fixed-axis tilt cannot.

6V 20W LED light source

An LED light source removes lamp replacement entirely, runs cool in a closed room and provides a service life measured in years rather than hours.

50 VA power consumption

Total consumption of 50 VA is among the lowest in this class, minimising both running cost and heat output.

Projection distance 2.0–7.0 m

The projector operates from 2.0 to 7.0 metres with 5 metres standard, covering mirrored six-metre lanes and direct long rooms alike.

30× magnification at 5 m

Magnification is 30× at 5 metres, producing a 330 × 225 mm projected image at that distance.

Auto-standby after 3–10 minutes

The unit enters standby automatically after 3 to 10 minutes of idle time, reducing consumption and heat between patients.

AC 220–240V operation

The power supply is specified for AC 220–240V at 50/60 Hz, placing UK mains at 230V nominal within the stated range.

364 × 240 × 240 mm at 6 kg

The main engine measures 364 mm high by 240 mm wide and deep, weighing 6 kg, light and compact enough for any conventional mounting.

180 g remote control

The handset weighs 180 grams, light enough to hold comfortably through a full appointment list without fatigue.

Chart variants A, B, C, D and F

Five chart variants are offered, with content differing between them; the set appropriate to UK acuity notation and paediatric requirements is specified at order.

The Visionstar ACP-7 is an LED chart projector built around the patients a letter chart cannot measure. Picture and tumbling E optotypes sit alongside conventional letters and numbers, so preschool children, patients with speech or cognitive difficulty and adults who do not read Latin script all get a proper acuity measurement at the same distance and illumination as everyone else. Four display isolation modes step from the whole chart down to a single target, making the crowding comparison that matters in amblyopia assessment a routine part of the examination. Ball joints aim the image freely in any direction, a 20 W LED at 50 VA runs cool with no lamp to replace, and the AC 220–240V supply matches UK mains natively. It suits paediatric practice, school and special educational needs screening, practices serving linguistically diverse populations, and any lane where amblyopia work is regular. Two things belong in the decision: icon selection at an average 0.3 seconds is a perceptible pause at high adult throughput, and the chart variant must be confirmed as carrying both UK-appropriate optotypes and the paediatric rows. Medigear.uk supplies the ACP-7 into the UK with pre-despatch functional inspection, documentation review and chart variant confirmation. Contact the Medigear.uk team for current pricing, quantity quotations, stand and arm compatibility, or bespoke configuration enquiries.

FAQ

Frequently Asked Questions

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

More patients than most practices plan for. Preschool children cannot reliably name letters. Children with speech delay or learning difficulty may know a letter without being able to say it. Patients with dementia may lose letter naming while retaining vision. And adults who read Arabic, Mandarin, Cyrillic or no script at all cannot be tested on a Latin chart. Tumbling E requires only a pointed direction; pictures require only recognition.

For measuring acuity, it is a recognised and appropriate alternative where letter naming is not available. It has its own characteristics — patients must understand the pointing task, and there are only four possible responses, so guessing has a higher success rate than with a letter chart. Used correctly it gives a sound acuity measurement, and it is the standard approach across much of the world.

They isolate progressively. Whole chart shows everything; single line shows one row of the chart; single row shows a column; single target shows one optotype alone. The point is contour interaction — a letter surrounded by others is harder to resolve than the same letter isolated, and that difference is diagnostically meaningful, particularly in amblyopia where crowding is a recognised feature.

Because it distinguishes a genuine acuity limit from a crowding effect. An amblyopic eye typically performs disproportionately worse on a crowded chart than on isolated optotypes, and comparing the two gives information a single measurement cannot. In paediatric practice this is routine rather than specialist.

Free aiming in any direction rather than adjustment along fixed axes. A projector mounted off-centre, high on a bracket, or on an arm at an angle needs to be aimed in two planes at once, and a ball joint does that in one movement. It makes awkward mounting positions workable rather than merely tolerable.

Not in practice. There is no halogen option, which means no lamp to source, stock or replace, considerably less heat in a closed consulting room, and a service life measured in years. The only consideration is that if the LED module eventually fails it is a service item rather than a five-minute bulb change, so confirm module availability and replacement cost at order.

A 6V 20W LED with 50 VA total consumption, on an AC 220–240V 50/60 Hz supply. UK mains at 230V nominal sits squarely inside that range. Auto-standby engages after 3 to 10 minutes of idle time. Confirm the plug configuration supplied at order, as regional variants differ.

From 2.0 to 7.0 metres, with 5 metres given as standard. That covers the mirrored six-metre lane arrangement common in UK practice and direct long rooms. Note that the projected image is 330 × 225 mm at 5 metres and scales with distance, so the size at your actual throw will differ.

It is slower than some projectors in this class, which change in a few hundredths of a second. Three tenths of a second is a brief but perceptible pause. For paediatric work — where the examination pace is set by the child's attention rather than the equipment — it is rarely the limiting factor, but at high adult throughput it is worth weighing.

That must be confirmed explicitly. The manufacturer offers variants A, B, C, D and F, and chart content differs between them, including letter sets and character systems. A UK practice needs optotypes appropriate to British acuity notation, and if paediatric work is the reason for buying, confirm that the picture and tumbling E rows are present in the variant quoted.

A chart projector is a non-invasive ophthalmic device, 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.

Very little. Keep the projection lens clean, since dust reduces contrast at exactly the acuity limits being measured. Check the ball joint occasionally for developing slack, since a joint that will not hold position defeats its own purpose. Replace remote batteries as needed. With no lamp to change, the maintenance schedule is essentially cleaning. Typical warranty is 12 to 24 months against manufacturing defect, confirmed at quotation.