Visionstar BIO-1000

Inspection Range of 90 Degrees

The stated inspection range is 90 degrees, taken at an inspection distance of 30cm. That reach covers central work and extends outward into the periphery where many defects first declare themselves.

Goldmann III Target and Standard

Testing follows the international Goldmann standard using a Goldmann III target size, which keeps results intelligible to any clinician trained on conventional perimetry.

Wide Stimulus Range

Background brightness is listed as white at 31.5 asb, with target brightness running from 1 asb up to 10000 asb and a target interval time of 200ms that can be adjusted to suit patient reflection.

Threshold and Upper Threshold Models

Threshold models listed include central 5 degree and 10 degree patterns, 24-2, 30-2, a 30 to 60 degree pattern and a nasal step, with a separate set of wider upper threshold models.

Special Detection Strategies

Esterman monocular and binocular tests, a user customised test, fast and standard 150 degree driver procedures, an upper 36 degree procedure and a 150 degree horizontal straightness procedure are all listed.

Real Time Fixation Monitoring

Heijl-Krakau physiological blind spot monitoring runs alongside gaze tracking and head position tracking, with eye position deviation raising an alarm and a deviation curve recorded.

Automatic Pupil and Light Measurement

Pupil diameter is measured automatically, which the manufacturer relates to reducing the effect of pupil size on the result. Ambient light detection is also listed as automatic.

Reporting and Progression Analysis

The software lists reliability analysis, single and triple vision reports, GPA half vision analysis, GPA glaucoma developing analysis and VFI vision index analysis.

Glaucoma Detection and Monitoring

Perimetry remains central to how glaucoma is diagnosed and followed, and the procedure list reflects that. The 24-2 and 30-2 threshold patterns are the workhorses, with a nasal step procedure aimed at one of the characteristic early patterns. GPA half vision analysis, GPA glaucoma developing analysis and VFI vision index analysis then turn a series of examinations into a statement about whether the field is stable or deteriorating, which is the question that actually drives treatment decisions over a patient's lifetime.

Driving and Occupational Assessment

Esterman monocular and binocular tests are listed, together with fast and standard 150 degree driver procedures and a 150 degree horizontal straightness procedure. Practices asked to assess fitness to drive, or to support an occupational health question, have the established procedures available without sending the patient elsewhere. Because these assessments carry consequences for a person's livelihood, having reliability indices attached to the result matters as much as the result itself.

Neurological and General Field Screening

A 90 degree inspection range with central 5 degree and 10 degree patterns at one end and wider upper threshold models at the other lets a clinician move between a detailed central examination and a quick peripheral sweep. Field loss arising from causes beyond the eye itself often shows a pattern respecting the vertical midline, and single and triple vision reports present both eyes in a form that makes such a pattern legible.

Reliability Review and Patient Communication

Blind spot monitoring, gaze tracking, head position tracking and the recorded deviation curve give the clinician a basis for judging whether a result reflects the patient's vision or their concentration. Reliability analysis is listed in the software. When a field has to be repeated, knowing why is far more useful than knowing only that the numbers looked odd.

Reliability Built Into the Examination

Perimetry is the examination patients find hardest and clinicians trust least, because a tired or inattentive patient produces a field that looks like disease. This instrument monitors the physiological blind spot by the Heijl-Krakau method, tracks gaze and head position in real time, raises an alarm on eye position deviation and records a deviation curve. Measuring pupil diameter automatically removes another variable. The result is a field that comes with evidence about how much weight it deserves.

A Procedure for the Patient in Front of You

The listed range runs from a tight central 5 degree pattern through 24-2 and 30-2 to wide upper threshold models, Esterman tests and 150 degree driver procedures, with a user customised option alongside. A clinic can therefore match the examination to the patient rather than forcing every patient through the same protocol. For an elderly or easily tired patient, choosing a faster strategy can be the difference between a usable field and no field at all.

Analysis That Thinks in Years

GPA half vision analysis, GPA glaucoma developing analysis and VFI vision index analysis are all listed, which matters because a single field rarely settles anything. Chronic disease is judged on trend, and software that summarises a series into an index and a progression statement saves the clinician reconstructing that trend by eye at every appointment. Single and triple vision reports then present the case in a form suitable for a referral or a discussion.

The Visionstar BIO-1000 is a perimeter built around trustworthy results. It works to the international Goldmann standard across a 90 degree inspection range at 30cm, with a Goldmann III target, white background brightness of 31.5 asb, target brightness from 1 asb to 10000 asb and a 200ms interval that adjusts to the patient. Threshold models including 24-2, 30-2 and a nasal step sit alongside wider upper threshold models, Esterman tests, 150 degree driver procedures and a user customised option, while Heijl-Krakau blind spot monitoring, gaze and head tracking, automatic pupil measurement and automatic ambient light detection guard the quality of what comes out.

This page states what the technical data states. Housing dimensions, mass, electrical supply, software version, configuration and condition do not appear on the material held, 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.

If your practice manages glaucoma, assesses fitness to drive or screens fields for neurological questions, 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 clinic.