Visionstar D-900

Under Three Kilogrammes

The instrument weighs 2.9kg, which is light enough for one person to move it between rooms without help or any particular thought about doing so.

Narrow Bench Footprint

It measures 185mm wide by 386mm high by 166mm deep, so under 200mm of bench width is occupied by the whole instrument as it stands in a room.

Sphere, Cylinder and Addition

Sphere runs 0 to plus or minus 25, with cylinder and addition each 0 to plus or minus 9.99, and axis across 0 to 180 degrees in 1 degree steps.

Hundredth Resolution

Resolution is 0.01, 0.12 or 0.25 in dioptres and the same three steps in prism, so a hundredth is available on both scales when a question needs settling.

Prism to Fifteen

Prism runs 0 to 15cm/m and is presentable in either X-Y or P-B form, which covers the prismatic work a general practice ordinarily has to verify.

Three Cylinder Presentations

Cylinder is presentable as plus, mixed or minus, so a reading appears in whichever convention a practice already uses when writing a prescription down.

Contact Lens Measurement

Both soft and hard contact lenses are measured, and lens diameter is accepted from 12 to 90mm across the stated measuring range of the instrument.

Compact Display

The display is a 3.5 inch LCD, with a package size of 420 by 250 by 200mm for anybody planning delivery into a small room or a first floor premises.

Crowded Dispensing Benches

Under 200mm of bench width is the whole argument here. A dispensing bench accumulates equipment, and a lensmeter that occupies half the depth of a larger instrument leaves room for the work itself to be done. For a practice that has run out of surface rather than out of money altogether, the footprint decides what can actually be bought and then put somewhere useful.

Second Instruments and Second Rooms

At 2.9kg this is light enough to be moved about, and not simply installed once. A practice with two consulting rooms, or one that occasionally works away from the premises, can carry it about instead of duplicating a heavier machine entirely. The The external printer suits that too, since it simply stays behind when the instrument travels, and nothing is left half-connected in the room it came from.

Practices Measuring PD Separately

Pupillary distance is listed as not available, so this suits any practice that takes the PD with a rule or a separate device as a matter of course. Where that is already the established routine, the omission costs nothing at all, and the instrument ought to be priced below one carrying a function that the practice was never going to switch on anyway.

Contact Lens and Prism Work

Both soft and hard contact lenses are measured here, and prism reaches 15cm/m in either presentation form. For a small practice that fits lenses and occasionally dispenses prism, having both upon a compact instrument avoids keeping a larger machine solely for the work that arrives a few times in a month and not every day.

Size That Decides the Purchase

For any practice short of bench space, the footprint is not a secondary consideration but the one that determines whether an instrument can be bought at all. Under 200mm wide and under three kilogrammes together put a lensmeter where a larger one simply will not go at all, and an instrument that fits the room beats a better specified one that has nowhere at all to stand within it.

Fine Resolution Retained

A hundredth is available in both the dioptres and the prism dioptres, which is not something that a compact instrument necessarily offers. Routine checking runs at the coarser steps, but a disputed pair needs the very finest, and keeping that capability in so small a machine means the size has been achieved without giving away the measurement that settles an argument with an unhappy patient.

Clear About What It Omits

A card that lists the pupillary distance as not available, and printing as external, is far easier to buy from than one that leaves both unstated. A practice can see at once whether the instrument suits the way it works, and where it does, then neither omission matters in the least. Knowing what a machine will not do is as useful as knowing what it will.

The Visionstar D-900 weighs 2.9kg and measures 185 by 386 by 166mm, with a package size of 420 by 250 by 200mm. Sphere runs 0 to plus or minus 25, cylinder and addition each 0 to plus or minus 9.99, axis across 0 to 180 degrees in 1 degree steps, and prism 0 to 15cm/m. Resolution is 0.01, 0.12 or 0.25 in both dioptres and prism dioptres. Cylinder is presentable as plus, mixed or minus, prism in X-Y or P-B form, both soft and hard contact lenses are measured, and lens diameter is accepted from 12 to 90mm. The display is a 3.5 inch LCD.

Two absences and one notation point are handled deliberately. Pupillary distance measurement is listed as not available and printing is by external printer, so a practice needing either wants a different model. Separately, the sphere and cylinder rows give their unit as metres while the addition row gives reciprocal metres; the latter is correct and the figures are not in doubt, but the inconsistency should be tidied. The electrical supply specification is not reproduced here.

If your practice is short of bench space, needs a second instrument for a second room, or measures pupillary distance separately, speak to Medigear.uk. As a verified medical equipment supplier working across medical, dental, rehabilitation and aquatic therapy settings, the team will confirm the full configuration.