Contents PTS software release 3.3 highlights EyeSee - eye - - PowerPoint PPT Presentation

Contents

• PTS software release 3.3 highlights
• EyeSee™ - eye recording
• ZETA™ and ZETA™ Fast – new thresholding strategies
• DPA™ - Defect Progression Analysis
• Head Tracker – automatic head adjustment
• Gaze Tracker 2.0 – improved test reliability
• Other improvements
• Reliablity tests frequency adjustment
• Exams list in Perimetry Wizard
• Quick Fast/Slow test speed switch
• Dynamic Field Extension
• Dynamic Retest
• PTS software development road map

EyeSee™ - eye recording

• EyeSee™ - eye recording
• Immediate preview of eye position at each

stimulus exposition

• Available during examination and in results

review page

EyeSee™ - eye recording

• EyeSee™ - eye recording
• Check eye fixation quality at uncertain test

locations

• Identify small pupils (pupil diameter changes

throughout the examination)

• Patient responses are marked in the EyeSee

images

EyeSee™ - eye recording

• EyeSee™ - eye recording
• Distinguish real defects from artifacts:
• Ptosis

EyeSee™ - eye recording

• EyeSee™ - eye recording
• Distinguish real defects from artifacts:
• No correction lens
• Not removed correction lens for peripheral

testing

• Lens holder shadow

ZETA™ Standarad

• ZETA™ Standard
• Zippy Estimation Thresholding Algorithm
• Uses Bayesian probability theory and probability

density functions built from normative and statistical data

• More robust to patients accidental invalid

responses - less defects in healthy visual fields

• High accuracy – at each location threshold is

crossed at least once

• Final threshold estimate is set at a probability

function’s peak - closer to real patient’s threshold

• Alternative to HFA’s SITA Standard

2 4 6 8 10 12 14 16 18 Max Min

• 24-2 field takse 3,5-7 minutes
• 30-2 field takes 5-9 minutes

*Available on 10-2, 24-2, 30-2 test fields (PTS 925W, PTS 2000) *Available for stimulus with age normative data (White Goldmann size III, Green Goldmann size III)

ZETA™ Fast

• ZETA™ Fast
• Fast version of ZETA algorithm
• ZETA Fast requires at least one positive response

to calculate the final threshold estimate - High sensitivity to defects

• Alternative to HFA’s SITA Fast

2 4 6 8 10 12 14 16 18 Max Min

• 24-2 field takse 2,5-5 minutes
• 30-2 field takes 3-6 minutes

*Available on 10-2, 24-2, 30-2 test fields (PTS 925W, PTS 2000) *Available for stimulus with age normative data (White Goldmann size III, Green Goldmann size III)

DPA™

• DPA™ Defect Progression Analysis
• Analysis of visual field defects in a long term

scale

• Separation of short term fluctuations from

real VF defects

• Extended progression analysis - comparison
• f several examinations to a baseline
• Comparison of up to 16 results at once

DPA™

• DPA™ Defect Progression Analysis
• Each test point is assigned the Defect

Progression result according to its Pattern Deviation difference from the baseline and to history of Defect Progression result at this location

• Possible results of comparison to a baseline

point:

• Normal (no deterioration)
• Deterioration in this test
• Deterioration in 2 consecutive tests
• Deterioration in 3 and more consecutive tests
• Out of range (baseline is already deteriorated)

DPA™

• DPA™ Defect Progression Analysis
• Each compared test has assigned the DPA result:
• No progression
• Possible Progression (3+ points with significant deterioration in 2+ consecutive tests)
• Likely Progression (3+ points with significant deterioration in 3+ consecutive tests)

DPA™

• DPA™ Defect Progression Analysis
• Analysis Results can be:
• printed on multi-page

report

• exported to PDF
• JPG
• DCM
• uploaded to DICOM

data storage

Head Tracker

• Head Tracker - Automatic head

position adjustment throughout the test

• monitors a pupil position during the test
• adjusts chinrest height to align a pupil
• Adjusts chinrest Left-Right position (PTS 2000
• nly) to align a pupil
• Adjustments are done between expositions

Gaze Tracker 2.0

• Gaze Tracker 2.0 – improved test reliability

Gaze Tracker Gaze Tracker 2.0 Record pupil movement   Stop when there is no eye in the preview   Record fixation losses   Hold the test when eye is closed/blink   Hold the test when there is no fixation state   Repeat the test when blink occured and there was no reaction (potential miss due to blink)  Repeat the test when the fixation whas lost during exposition (potential invalid response do to no-fixation) 

Other improvements

• Reliablity tests frequency adjustment
• Frequency of FPOS, FNEG and HK test can be

adjusted to 5%, 10%, 15%, 20%

• Higher frequency of reliability test recommended for

rapid strategies like TOP, TOP+, Advanced, ZETA Fast

Other improvements

• Exams list in Perimetry Wizard
• List of all examinations stored for a patient
• Touch friendly - swipe to scroll the list
• Direct access to Test Summary, Results Review

and Report Generator

Other improvements

• Quick Fast/Slow test speed switch
• Double the reaction and pause time for

elderly patients with a single touch

• Use adaptive option to adjust the test speed

according to patient’s ability

Other improvements

• Dynamic Field Extension
• Possibility to extend the test field with

additional peripheral points during the test

• Extend the test field to better visualize the

defects

Other improvements

• Dynamic Retest
• Select points for which the test should be

repeated without waiting for the test end

• Instantly confirm defects in dubious test

locations