Factors Associated With Visual Field Testing Reliability in Children With Glaucoma or Suspected Glaucoma - 17/07/24
Highlights |
• | In children with glaucoma/suspect, 51.3% of visual field tests were reliable. |
• | Test reliability was associated with older age and better baseline visual acuity. |
• | Reliability was also associated with English as primary language. |
• | A significant learning effect was not observed with repeated testing. |
Résumé |
Purpose |
To evaluate Humphrey Visual Field (HVF) test reliability and its associated risk factors in children with glaucoma or glaucoma suspect.
Design |
Retrospective cohort study.
Methods |
None.
Setting |
Single-center childhood glaucoma clinic.
Patient Population |
One hundred thirty-six patients aged ≤18 years with glaucoma/glaucoma suspect, and least 1 completed 24 to 2 HVF test between 2018 and 2023.
Observation Procedure |
Demographic and clinical characteristics including age, primary language, visual acuity (VA), and glaucoma diagnosis were extracted from electronic health records.
Main Outcome Measures |
HVF 24 to 2 testing metrics, including FP, FN, and FL. Tests were defined as reliable using manufacturer guidelines of ≤33% FP, ≤33% FN, and ≤20% FL. For each patient, a reliability score was calculated as the percentage of reliable tests among all tests completed. A multivariable logistic regression model was used to determine factors associated with test-level reliability (yes/no). A multivariable linear regression model was used to determine factors associated with patient-level reliability score.
Results |
Among 634 HVFs from 136 patients (Mean ± SD age at first test 12.0 ± 3.2 years, 47.8% female), 51.3% were reliable. Older age, better baseline VA, and English as primary language were associated with greater odds of test-level reliability (P < .04). Mean ± SD patient-level reliability score was 51.7 ± 38.1%. Older age at first clinic visit, better baseline VA, and English as primary language were associated with higher reliability scores (all P < .02), and number of prior VF tests was not (P = .56).
Conclusions |
Younger age, worse visual acuity, and non-English as primary language were associated with decreased reliability and should be considered when interpreting VF testing in children. A significant learning effect was not observed with repeated testing.
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| Supplemental Material available at AJO.com. |
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| Meeting Presentation: The research findings of this manuscript will be presented as an oral presentation at the American Association for Pediatric Ophthalmology and Strabismus meeting in 2024. |
Vol 264
P. 187-193 - août 2024 Retour au numéro
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