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Archetypal Analysis Reveals Consistent Visual Field Patterns for Stimulus Sizes III and V in Glaucoma and NAION
Journal article   Open access   Peer reviewed

Archetypal Analysis Reveals Consistent Visual Field Patterns for Stimulus Sizes III and V in Glaucoma and NAION

David Szanto, Michael Wall, Luke X Chong, Brian Woods, Tobias Elze, Jui-Kai Wang, Mona Garvin, Randy Kardon and Mark J Kupersmith
Translational vision science & technology, Vol.13(12), 15
12/02/2024
DOI: 10.1167/tvst.13.12.15
PMCID: PMC11645746
PMID: 39666357
url
https://doi.org/10.1167/tvst.13.12.15View
Published (Version of record) Open Access

Abstract

Disorders of the anterior optic nerve cause quantifiable patterns, or archetypes (AT), in visual fields (VFs) obtained using standardized automated perimetry using stimulus size III (size III). VFs with stimulus size V (size V) can reduce retest variability in eyes with moderate to severe loss. We postulated that VF testing using both stimuli would show similar ATs in eyes with glaucoma and nonarteritic anterior ischemic optic neuropathy (NAION). We used 1969 same-day pairs of 24-2 size III and size V VFs from two datasets. QRK207 is the largest NAION study to date, and the VIPII study measured same-day VFs across many stimulus sizes. We censored raw sensitivities of less than 21 dB for size III and 24 dB for size V and age-standardized to total deviations, before archetypal analysis (AA). We compared the ATs between the two stimuli and the combined data. Using 14 ATs for both glaucoma and NAION, AA captured similar patterns between the two stimuli in both diseases with 87% of AT pairings having a cosine similarity of 0.8 or greater. The combined ATs retained the patterns in the separate stimuli VFs. AA shows that size V VFs provide quantifiable patterns of loss similar to size III. This aids in comparing stimulus sizes for monitoring VF patterns in disease progression. AA shows similar quantifiable patterns of VF loss with size III or size V, supporting the use of size V to monitor eyes with moderate to severe VF loss.
Aged Female Glaucoma - diagnosis Glaucoma - physiopathology Humans Male Middle Aged Optic Neuropathy, Ischemic - diagnosis Optic Neuropathy, Ischemic - physiopathology Visual Field Tests - methods Visual Fields - physiology

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