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New developments in supra-threshold perimetry.

David B Henson¹, Paul H Artes

¹Academic Department of Ophthalmology, University of Manchester, Royal Eye Hospital, UK. david.henson@man.ac.uk

Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)

|October 3, 2002

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Enhanced supra-threshold perimetry using the HEART algorithm improves visual field testing. Optimized tests offer high sensitivity and specificity, comparable to modern threshold techniques, and may be easier for new patients.

Area of Science:

Ophthalmology
Optometry
Visual Science

Background:

Supra-threshold perimetry is a common visual field test.
Enhancements are needed to improve its accuracy and efficiency.

Purpose of the Study:

To describe recent enhancements to supra-threshold perimetry.
To introduce the HEART algorithm for improved test intensity setting.
To evaluate pass/fail criteria and compare with threshold perimetry.

Main Methods:

Computer simulations developed the HEART algorithm.
Evaluated HEART and pass/fail criteria for sensitivity and specificity.
Analyzed patient response times to detect false positive errors.

Main Results:

Related Experiment Videos

HEART algorithm demonstrated improved performance with reduced between-eye differences.
A '3 stimuli seen of 3-5 presentations' criterion reduced variability and enhanced sensitivity/specificity.
Response time analysis effectively detected false positive responses.

Conclusions:

Optimized supra-threshold visual field tests achieve performance comparable to modern threshold techniques.
These enhanced tests may be more suitable for patients new to visual field testing.