The Usefulness of Assessing Glaucoma Progression With Postprocessed Visual Field Data. 2022

Sampson L Abu, and Shervonne Poleon, and Lyne Racette
Department of Ophthalmology and Visual Sciences, University of Alabama at Birmingham, Birmingham, AL, USA.

Data postprocessing with statistical techniques that are less sensitive to noise can be used to reduce variability in visual field (VF) series. We evaluated the detection of glaucoma progression with postprocessed VF data generated with the dynamic structure-function (DSF) model and MM-estimation robust regression (MRR). The study included 118 glaucoma eyes with at least 15 visits selected from the Rotterdam dataset. The DSF and MRR models were each applied to observed mean deviation (MD) values from the first three visits (V1-3) to predict the MD at V4. MD at V5 was predicted with data from V1-4 and so on until the MD at V9 was predicted, creating two additional datasets: DSF-predicted and MRR-predicted. Simple linear regression was performed to assess progression at the ninth visit. Sensitivity was evaluated by adjusting for false-positive rates estimated from patients with stable glaucoma and by using longer follow-up series (12th and 15th visits) as a surrogate for progression. For specificities of 80% to 100%, the DSF-predicted dataset had greater sensitivity than the observed and MRR-predicted dataset when positive rates were normalized with corresponding false-positive estimates. The DSF-predicted and observed datasets had similar sensitivity when the surrogate reference standard was applied. Without compromising specificity, the use of DSF-predicted measurements to identify progression resulted in a better or similar sensitivity compared to using existing VF data. The DSF model could be applied to postprocess existing visual field data, which could then be evaluated to identify patients at risk of progression.

UI MeSH Term Description Entries
D005901 Glaucoma An ocular disease, occurring in many forms, having as its primary characteristics an unstable or a sustained increase in the intraocular pressure which the eye cannot withstand without damage to its structure or impairment of its function. The consequences of the increased pressure may be manifested in a variety of symptoms, depending upon type and severity, such as excavation of the optic disk, hardness of the eyeball, corneal anesthesia, reduced visual acuity, seeing of colored halos around lights, disturbed dark adaptation, visual field defects, and headaches. (Dictionary of Visual Science, 4th ed) Glaucomas
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014794 Visual Fields The total area or space visible in a person's peripheral vision with the eye looking straightforward. Field, Visual,Fields, Visual,Visual Field
D016014 Linear Models Statistical models in which the value of a parameter for a given value of a factor is assumed to be equal to a + bx, where a and b are constants. The models predict a linear regression. Linear Regression,Log-Linear Models,Models, Linear,Linear Model,Linear Regressions,Log Linear Models,Log-Linear Model,Model, Linear,Model, Log-Linear,Models, Log-Linear,Regression, Linear,Regressions, Linear
D058609 Visual Field Tests Method of measuring and mapping the scope of vision, from central to peripheral of each eye. Automated Perimetry Exam,Campimetry,Perimetry,Tangent Screen Exam,Visual Field Exam,Automated Perimetry Exams,Campimetries,Exam, Automated Perimetry,Exam, Tangent Screen,Exam, Visual Field,Exams, Automated Perimetry,Exams, Tangent Screen,Exams, Visual Field,Field Exam, Visual,Field Exams, Visual,Field Test, Visual,Field Tests, Visual,Perimetries,Perimetry Exam, Automated,Perimetry Exams, Automated,Screen Exam, Tangent,Screen Exams, Tangent,Tangent Screen Exams,Test, Visual Field,Tests, Visual Field,Visual Field Exams,Visual Field Test
D018450 Disease Progression The worsening and general progression of a disease over time. This concept is most often used for chronic and incurable diseases where the stage of the disease is an important determinant of therapy and prognosis. Clinical Course,Clinical Progression,Disease Exacerbation,Exacerbation, Disease,Progression, Clinical,Progression, Disease

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