| Customization: | Available |
|---|---|
| Customized: | Non-Customized |
| Certification: | CE |
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MOQ: 1 Unit
Standard Full Field White on White Perimetry
The machine offers a wide range of test patterns and strategies, including T30-2, T24-2, T10-2 for glaucoma diagnosis and T-Macula for macula function assessment. In addition, special test patterns like driver feasibility, monocular/binocular social security disability are also included.
Unlike other hidden LED array competitive products using red/yellow stimulus, it uses the exactly same white stimulus and background illumination as those high-end front projection perimeters. The same dynamic range, same stimuli and background illumination resulted in highly consistent test result with high-end, mainstream front projection perimeter.
For better detection of visual field loss caused by early stage glaucoma, points of T30-2 and T24-2 were cautiously configured on the most sensitive position of retinal nerve fiber bundle.
If necessary, VF-800S supports customizing your own test patterns.
SWAP for Earlier Glaucoma Detection
Valid for VF-800S Only
Researches suggest that Blue-Yellow ganglion cells are selectively damaged first in the early glaucoma. Short-Wavelength Automated Perimetry, or SWAP, is also known as Blue-Yellow perimetry. SWAP preferentially tests the blue cones and their ganglion cell connections by the means of using bright 100 cd/m2 yellow background to desensitizes the green and red cones, and evokes response of blue cones through carefully chosen 440nm blue stimuli.
Researches show that SWAP identified early glaucomatous visual field defects and progression in glaucomatous field loss much earlier than they could be detected by using standard white-on-white perimetry. It has been proven clinically that SWAP test result is highly consistent with RNFL loss caused by glaucoma.
VF-800S provides you with economic Blue-Yellow peremetry solution through T30-SWAP, T24-SWAP programs. Faciliated by its unique HISA-SWAP algorithm, IVS completes a Blue-Yellow peremetry as quick as the usual White-White perimetry does. Benefitted by its brighter blue stimuli, it operates Blue-Yellow with standard Goldmann III stimuli, compared with competitor's Goldmann V solution,this will result in more accurate damage location
PRECISION DIAGNOSYS
Strictly conforming to the newest perimetry standard of IMAING and PERIMETRY SOCIETY, the machine simultaneously fulfill the needs for opthalmological and neurological uses.
Equipped with world-wide accepted 31.5 asb background illumination, incorporate with efficient HISA algorithm, comprehensive fixation control and age-related normal database, its perimetry result is highly consistent with Goldmann standard perimeter.
Its aspheric dome effectively shrinks its size, while ensuring the full field test range.
COMFORTABLE PERIMETRY
The super-silent design of chin rest and fan free power system makes the test quiet and comfortable; The inclined LCD monitor guarantees the optimized operator view and operation angle; The embedded monitor and its glare shield effectively avoid the impacts of monitor rays on patient.
The chin rest control buttons on the operator's side produce the comfortable experience. Apart from L/R, U/D, the middle button automatically calibrates pupils to the center with the cooperation of eye tracking camera.
Compared with its competitor's 12.1" CRT, our 15" LCD provides higher display quality and more diagnostic information. Better display quality, more sensitive touch screen and virtual multi-language keyboard enable you an easy operation system
with one finger.
The ergonomic responder applies to all hands whatever the race, age and gender; Its elaborately selected tactile switch with 2.45 N action force has a life cycle of 1,000,000 times; The unique design brings us happy and straightforward response experience. Meanwhile, the switch action is easily perceived, even for old sluggish patients.
Optional: Our foot pedal responder is accessible to the disabled. Mechanical keyboard and external mouse are available as well.
QUICKER PERIMETRY
HISA-Heuristic Interactive Threshold Searching Algorithm
HISA forecasts initial threshold for new point through a very complex mathematical model, which takes neighbouring tested results and same age normal values into consideration. Then unnecessary search will consequently be avoided. During test process, HISA intelligently skips those "undoubted" questions regarding the change of neighbouring point's value.
HISA is not likely to initiate all points at beginning but do a sample survey from some specific location. Subsequently, time will be saved for patients with seriously reduction of sensitivity by skipping those high-sensitivity questions.
HISA will adjust the stimuli interval adaptively according to the patient's response lag. With HISA, young, quick patients will experience a happier, faster and more reliable test. And older, sluggish patients will not miss the response in long stimuli intervals.
HISA will evaluate the reliability of the tested points through a complex reliability function. HISA will automatically retest the result if it is suspected.
HISA will …with other secret techniques and mathematical models, HISA is bound to be the most reliable and accurate threshold testing strategy
Dedicated System, Safer Data, Easier Use
Instead of common x86 PC and its relative operating system, it adopt low power, high reliability, space compact industrial embed ARM computer and dedicated operating system. It is immune to common computer viruses, and its simple structure (no video card, no hard disk, no DVD drive) brings us
incredible reliability.
More 1000,000 tests can be stored in more than 32 GB solid state disk. High drop and unusual power off will not result any data loss.
We have elaborately designed its UI and operation process, which is easily accessible for a fresh operator without any instructions. Following the philosophy of "Simple is Best", we make attempt to simplify the operation. You will never click twice for one-click operation.
ACCURATE PERIMETRY
Gaze Tracking
Minimize effects of unreliable response
"Gaze Tracking" constantly monitors the pupil position and patient's fixation. System beeps to draw patient's attention when a fixation shift is detected. If fixation shift lasts for a while, system will stop test and ask for operator's intervention.
When occasional pupil shift appears, system automatically ignores the question and its corresponding response under the condition that the stimuli presents during pupil shift.
Blink Control
Never miss a point
Its BLINK CONTROL helps avoid dry eyes and relax the patient for more focused subsequent test. With its BLINK CONTROL, stimuli during subject's blinking will never be worried since stimuli interrupted by the patient blinking will automatically be repeated in later test.
Blind Spot Monitor
It will present stimuli on blind spot periodically. If patient responses one, system will record it as blind spot monitor failure.
From stimuli presents to patient's response, there should be a reasonable time lag. If the patient response incredibly fast, system will record it as a FALSE POSITIVE as a reaction to patient's "Happy Trigger".
Blink spot monitor, FALSE NEGATIVE, FALSE POSITIVE and Gaze Tracking Curve could help you scientifically evaluate the reliability of test result.
UNIVERSAL PRINTOUTS
Digits, grayscales, comparison, probability, pattern comparison and probability extensively reflect the information gathered during a perimetry test from different perspectives. The universal HFA-style printout makes it easier to compare its results with other mainstream perimeters. Meanwhile, for paper writing, the universal or familiar graphs will be more accepted by reviewers.
In comparison with other graphs, pattern comparison / probability is more liable to correct the effects of media opacities, refractive error, and other generalized field loss by small pupils. It try to reflect only the change of fundus and resulting localized field loss, thus make it more valuable for glaucoma diagnosis.
GHT-Glaucoma Hemifield Test
Comparing points within five zones in the superior and inferior hemifields, T30-2, T24-2, T30-SWAP and T24-SWAP provide a plain language analysis of the test results: Outside the Normal Limits, Within Normal Limits, Borderline, Abnormal High Sensitivity and General Reduction of Sensitivity.
The GHT result is valuable for glaucoma diagnosis, because the primary aim of GHT is to identify localized visual field loss occurring in a pattern typical of that seen in glaucoma.
Visual Field Index, Pattern Standard Deviation
VFI is a measure of the patient's overall visual function compared to an age-adjusted normal population. It has been proven that it is highly consistent with ganglion cells density and resulted visual function.
PSD is a measurement of the degree to which the shape of the patient's measured field departs from the normal, age-corrected reference field. A high PSD indicates an irregular hill and may be due either to variability in patient response or to actual field irregularities.
MORE THAN REFINED
Glaucoma Progression Analysis
It can accurately differentiates clinically significant progression of visual field loss from random variability within a series of follow up tests, providing an advanced, reliable method to enhance the management of glaucoma. It really helps identify rapidly progressing, high-risk patients.
Automated Pupil Measurement
It can automatically measure patient's pupil diameter and print it in report. This benefits comprehension of the correlation between pupil size and perimetry result, then avoid wrong report interpretation with too small pupil size.
Multi-Language Support
We are aiming to serve the people worldwide. Chinese, English, French, Russian, Arabian, Spanish, Portuguese are supported. The embedded universal input method enables it to input operator's native language. The report will be automatically generated into your native language according to your option.
Instant Networking & E-Report
Benefits from the supported DICOM protocol, it can be configured to be connected with any EMR system which conforms to the DICOM standard.
The units can be connected into LAN through RJ45 wire or WIFI. You can export the test report to PDF/JPG file, then access them through another Windows PC in the same LAN.
Specifications:
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Stimulus generation
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Hidden LED Array
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Max temporal range (degrees)
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90°
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Testing distance
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30cm
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Background illumination
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31.5 asb ( 10cd/m2 ),100 cd/m2 * |
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Stimulus size
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Goldmann III
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Stimulus intensity
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0.08 asb - 10,000 asb (0-50 dB)
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| Stimulus duration | 200ms, Configurable |
| Test Strategy | |
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Threshold test library
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T30-2, T24-2, T10-2, T-Macula
T60-4, T60-2
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Threshold strategy
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Full Threshold, Fast Ladder, HISA, Standard Threshold
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Screening test library
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S-40, S-64, S-76, S-60
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Screen strategy
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Two Zone, Three Zone, Quantify Defects
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| Blue/Yellow perimetry* | T24-SWAP, T30-SWAP |
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Colored perimetry*
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Blue Stimuli |
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Specialty test patterns
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D-30, D-60, EM-M, EM-B, Horizontal◊
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Fixation monitor
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Heijl/Krakau blind spot monitor, Infrared video eye monitor,
Gaze tracking, Fixation tracking, Pupil measurement, Blink control
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Software features
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Visual Field Index
Single field analysis
HISA analysis
Networking
Pupil Measurement
DICOM (optional)
Glaucoma Hemifield Test
Serial field overview
Glaucoma Progression Analysis
SWAP Analysis*
Custom Program*
Horizontal Analysis ◊
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Responder
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Hand held, Foot pedal optional(for upper limb disabled)
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Operating System
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OS
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Dedicated OS, immune for general computer viruses
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Operator interface
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15'' LCD touch screen, Keyboard & Mouse optional
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Data Storage
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≥32GB, More than 1,000,000 test results
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Data Backup
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Flash Disk optional, Portable Hard Disk optional, Networking
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Networking
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Ethernet & WIFI
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Electrical Requirements
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Input
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AC 100-240V, 50~60Hz
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Power consumption
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100 VA
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Dimension/Weight
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56x49x60cm / 25 kg
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