Visionstar APS-T90 T00

Coloured Target Perimetry

Red, blue and white targets are listed, and the manufacturer relates colour perimetry to more sensitive detection of early field defects than white testing alone provides.

Two Background Options

Backgrounds are available in white at 31.5 asb and yellow at 315 asb, which is what allows a coloured target to be presented against a suitable surround.

Intelligent Testing Strategies

The IDT strategies are stated to complete a full inspection threshold in three minutes, with intelligent dynamic and fast intelligent dynamic options among the threshold strategies listed.

Detection Range and Brightness

The detection range is 0 to 90 degrees. Target brightness runs from 0.08 asb to 10000 asb, with a brightness level of 0 to 51 dB and optical projection delivering the stimulus.

Full Goldmann Grade Set

Target size covers the Goldmann standard grades I, II, III, IV and V, so the operator can raise grade for a patient responding poorly at the size normally used.

Adjustable Timing

Target interval time and target holding time are each listed at 200ms or more, both described as customisable without a stated limit, so pacing can follow the patient.

Threshold and Screening Programmes

Threshold modes list centre 10-2, 24-2, 30-2, 60-4, nasal step and macula, with screening modes covering the centre, peripheral, Armaly, full field, upper and Esterman sets.

Video Fixation Monitoring

Dynamic real time video monitoring runs with physiological blind spot monitoring, an eye tracking curve and an eye position offset alarm.

Early Defect Detection

Colour perimetry is the headline claim here, described by the manufacturer as more sensitive to early field defects. Red and blue targets can be presented against white at 31.5 asb or yellow at 315 asb, giving the clinician a second way of interrogating a field that still looks ordinary under conventional white testing. For practices watching patients considered at risk, that additional sensitivity is the whole reason to run a further examination rather than simply waiting for the next appointment.

Glaucoma Assessment and Reporting

Threshold modes cover centre 10-2, 24-2, 30-2 and 60-4 alongside nasal step and macula, which are the patterns glaucoma work depends on. Glaucoma semi vision analysis is listed in the software, together with reliability analysis, single vision analysis, triple report analysis and overview vision analysis. Report figures extend to greyscale, overall bias decibel charts, deviation probability maps and pattern deviation probability plots.

Rapid Screening in a Busy Clinic

The stated three minute full inspection threshold, combined with fast threshold and fast intelligent dynamic strategies, is aimed squarely at clinic throughput. Screening modes span centre 40 through 80, Armaly patterns, peripheral 60, full field procedures and the upper 36 and 64 sets. A practice can therefore choose a short procedure when the question is simply whether a field is broadly normal.

Occupational and Driving Assessment

Esterman monocular and Esterman binocular programs are both listed, giving practices the recognised procedures for fitness to drive and occupational vision questions. Because the eye tracking curve and offset alarm record how steadily the patient held fixation, an assessment carrying consequences for someone's livelihood arrives with evidence about its own reliability attached.

Colour as a Second Line of Enquiry

Most field testing asks one question with one white target. Offering red and blue against either a white or a yellow background turns that into a richer enquiry, and the manufacturer ties coloured perimetry directly to picking up early defects. The practical value shows in the difficult case: a patient whose conventional field looks unremarkable but whose history suggests otherwise. Having another way to look, on the same instrument in the same appointment, changes what a practice can resolve in house.

Speed Without Abandoning Depth

A stated three minute full inspection threshold matters because perimetry fatigue is real and a tired patient produces an unreliable field. Alongside the fast strategies sit full threshold, custom, two notation and three notation options, so shortening the examination is a choice rather than the only setting available. Clinics can run quickly when screening and thoroughly when a diagnosis depends on it.

Reporting Built for Interpretation

Report figures cover value and greyscale presentations, an overall bias decibel chart, an overall deviation probability map, a pattern deviation decibel chart, a pattern deviation probability plot and a staring figure. That range lets a clinician move from raw sensitivity to a probability statement about how unusual a result is, which is the step that separates an interesting pattern from a finding worth acting on.

The Visionstar APS-T90 combines coloured target testing with strategies built for speed. Red, blue and white targets can be presented against white at 31.5 asb or yellow at 315 asb across a detection range of 0 to 90 degrees, with brightness from 0.08 asb to 10000 asb and the full Goldmann grade set from I to V. Intelligent testing strategies are stated to complete a full inspection threshold in three minutes, and threshold modes run from macula and centre 10-2 out to 60-4, with screening modes reaching the Armaly and full field patterns.

This page states what the supplied material states. Housing dimensions, mass, electrical supply, software version, configuration and condition do not appear on that material, and nothing here should be read as a claim about testing or regulatory approval. Medigear.uk will confirm those points along with the full model designation before a practice commits.

If your clinic wants coloured perimetry alongside conventional threshold work, or needs a faster screening route through a heavy list, and you want the specification checked against the patients you actually see, speak to Medigear.uk. As a verified medical equipment supplier working across medical, dental, rehabilitation and aquatic therapy settings, the team will confirm what this instrument offers and help you judge whether it suits your practice.