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Improving event-based progression analysis in glaucomatous visual fields
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DOI：10.1038/s41598-021-95877-9.png)
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Abstract
En 中文
Glaucoma is a progressive optic neuropathy with characteristic changes to the optic nerve head and the visual field (VF). Detecting progression of VF damage with Standard Automated Perimetry (SAP) is of paramount importance for clinical care. One common approach to detecting progression is to compare each new VF test to a baseline SAP test (event analysis). This comparison is made difficult by the test-retest variability of SAP, which increases with the level of VF damage, and the limited range of measurement, meaning that damage cannot be assessed below a certain level. We performed a prospective international multi-centre data collection of SAP data on 90 eyes from 90 people with glaucoma and different levels of VF damage over a short period of time (6 tests in 60 days). Data were collected using a fundus tracked perimeter (Compass, CenterVue). We used these data (minus the first test) to develop an improved event analysis that accounts for both the change in variability with damage and the lower bound on the measurement imposed by SAP. Using simulations, we show that our approach is more sensitive compared to previously developed methods, especially in the case of advanced glaucoma, while retaining similar specificity.
Keywords:
TEST-RETEST VARIABILITY
CATARACT-EXTRACTION
INTRAOCULAR-PRESSURE
OCULAR HYPERTENSION
AUTOMATED PERIMETRY
FULL THRESHOLD
STANDARD
TRIAL
AGIS
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