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ENT, Ophthalmic & Sensory
Visionstar TF-5470

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Visionstar ENT, Ophthalmic & Sensory

Visionstar TF-5470

Product Code: EOAS-OAVT-3373

Each eye centred on its own, because faces are rarely symmetrical.

Most frames assume the nose sits exactly between the pupils. The TF-5470 adjusts each side separately across 54 to 70 mm, holds four lenses per eye, and weighs 60 g.

Sections

Trial Lens Sets & Frames

Categories

ENT, Ophthalmic & Sensory

Condition

New

Origin

China

Seller Type

Certified Professional Seller

CE & ISO Certified

Global Shipping

Supplier: Medigear

The Visionstar TF-5470 is described by the manufacturer as a universal adult trial frame. The published data gives an interpupillary scale of 54 to 70 mm adjusted on a single side, right or left; four standard trial lenses inserted simultaneously per side; an angle range of 0° to 360°; a weight of 60 g; and axial calibration on each lens, listed as left −120° to 0° to 135° and right −45° to 180° to 60°, with full 360° rotation.

The phrase "single side (right or left)" is the important one. It indicates that each cell is positioned independently relative to the bridge, which is monocular PD adjustment. Few faces are symmetrical: one pupil commonly sits a millimetre or two further from the centre of the nose than the other. A frame that adjusts only the total distance centres both lenses equally either side of the bridge, so on an asymmetric face one lens is always slightly off. Setting each eye to its own monocular PD removes that error.

That matters most where centration matters most: higher prescriptions, anisometropia, and any patient whose refraction will be translated into progressive or high-index spectacles, where monocular PDs are specified anyway.

The printed calibration and full rotation let a cylinder axis be set and read rather than estimated. The published axis figures are asymmetric and read more like descriptions of how each scale is printed than like limits on movement, particularly since full rotation is stated alongside them.

This is the base TF-5470 rather than a titanium variant; no material is stated. Unpublished are the cell diameter, vertex distance and pantoscopic tilt ranges, temple adjustment, and whether a case is included.

Higher prescriptions are where monocular centration earns its place. Induced prism grows with lens power, so a millimetre of decentration that is harmless at low powers becomes measurable as the prescription rises.

Anisometropia benefits directly, since the two eyes carry different powers and any decentration produces unequal prism between them, which is exactly what a binocular assessment is trying to detect.

Facial asymmetry is common enough that a practice sees it daily, and setting each eye independently stops the refraction absorbing an error the patient's anatomy introduced.

Progressive and high-index lens refractions suit a frame set to monocular PDs, since those are the figures that will be specified in the final spectacle order.

Cylinder work benefits from the printed calibration and full 360° rotation, letting the axis be set and read rather than estimated.

Teaching clinics can use the independent adjustment to show students what monocular PD means and why a total distance can mislead.

Routine low-power refraction gains little from monocular adjustment, and a simpler frame will serve.

Children are outside the stated adult range, with a lower limit that will not reach most young patients.

Each eye set on its own

Independent adjustment centres each lens on its own pupil rather than splitting a total distance equally.

Corrects for facial asymmetry

Most faces are slightly uneven, and monocular setting removes the error that introduces.

Matches the final spectacle order

Progressive and high-index lenses are ordered to monocular PDs, so the refraction uses the same figures.

Four lenses per side

Sphere, cylinder, prism and an auxiliary lens can all be in place together.

Axis read, not estimated

Printed calibration and full rotation let a cylinder be set and recorded accurately.

A moderate weight

At 60 g the frame is comfortable for routine refraction and lighter than many fully adjustable designs.

Suits anisometropia

Unequal prism between the eyes is avoided when each lens is centred correctly.

A universal adult frame

Positioned by the manufacturer for everyday adult refraction across a broad range.

Its ambiguities flagged

The brief monocular wording and the asymmetric calibration figures are both identified for confirmation rather than assumed.

Monocular PD adjustment

54 to 70 mm scale, adjusted per side, right or left.

Four lenses per side

Four standard trial lenses inserted simultaneously, each side.

360° rotation

Full rotation of each lens, with a stated angle range of 0° to 360°.

Axial calibration

Printed on each cell. Published as left −120° to 0° to 135°, right −45° to 180° to 60°; meaning confirmed at order.

60 g weight

The published frame weight.

Lens holders each side

Separate holders on the right and left, as called out by the manufacturer.

Adult frame

Described as an adjustable adult trial frame.

Material

Not stated for this base model. Confirmed at order.

Cell diameter

Standard trial lenses stated; diameter confirmed against your set at order.

Vertex distance and tilt

Not stated. Confirmed at order.

Temple adjustment

Visible in the photographs; range not stated. Confirmed at order.

Case

Not stated. Confirmed at quotation.

The Visionstar TF-5470 is a universal adult trial frame whose defining feature is monocular adjustment: each eye is centred independently across 54 to 70 mm, rather than a total distance being split evenly across an assumed symmetrical face. That matters at higher powers, in anisometropia, and wherever the final spectacles will be ordered to monocular PDs. Four lenses per side, full 360° rotation and printed calibration complete it, at 60 g. The published monocular wording is brief and the axis figures are asymmetric, so Medigear.uk confirms both before supply, along with cell diameter, material, and vertex and tilt ranges. Note this is the base model, not the titanium variants sharing its number. Contact the Medigear.uk team for pricing.

FAQ

Frequently Asked Questions

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

That each cell moves independently relative to the bridge, rather than both moving together from a centre point. The clinician sets the right eye to the right monocular PD and the left eye to the left one, instead of splitting a total distance equally between them. The published wording is brief, so Medigear.uk confirms the mechanism before supply.

Because most faces are slightly asymmetric. If the right pupil sits 32 mm from the nose and the left 30 mm, a frame set to a 62 mm total places both lenses 31 mm out, leaving each a millimetre off. At low powers that barely matters; at high powers, or with a large difference between the eyes, it introduces measurable prism.

Patients with higher prescriptions, anisometropia, noticeable facial asymmetry, and anyone being refracted for progressive or high-index lenses, where monocular PDs are specified in the final order anyway.

A reading rather than an estimate. Cylinder axis has to be recorded accurately or the prescription cannot be reproduced, and printed scales around each cell let the setting be read directly.

As published they are asymmetric: left −120° to 0° to 135°, right −45° to 180° to 60°. Since full 360° rotation is stated separately, these most likely describe how each scale is printed rather than any limit on travel. We confirm the meaning in writing before supply.

Moderate. It is lighter than many fully adjustable frames and comfortable for a routine refraction. Patients having long or repeated tests may notice it more than a titanium frame.

No. This is the universal TF-5470, and the data does not state a titanium construction. The material is confirmed at order.

It is described as an adult frame, and the 54 mm lower limit per the scale will not suit most children. Paediatric work needs a frame reaching lower.

The data says standard trial lenses, which are commonly 38 mm, but the cell diameter is not stated explicitly. We confirm it against your existing set.

Not stated. The photographs show adjusters at the temples and bridge, which suggests so, but the ranges are not published. We confirm what adjusts and by how much.

A trial frame is generally a Class I medical device under the UK Medical Devices Regulations 2002. Medigear.uk confirms CE marking, the declaration of conformity and UKCA status at quotation.

Check that both monocular adjustments still hold their settings independently, keep the calibration markings clean and legible, keep the cells free of lens debris, and store it cased. Typical warranty is 12 months, confirmed at quotation.