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Predicting Vision-Related Disability in Glaucoma.

Ricardo Y Abe1, Alberto Diniz-Filho2, Vital P Costa3

  • 1Department of Ophthalmology, Duke University, Durham, North Carolina; Department of Ophthalmology, University of California, San Diego, La Jolla, California; Department of Ophthalmology, University of Campinas, Campinas, Brazil.

Ophthalmology
|October 17, 2017
PubMed
Summary
This summary is machine-generated.

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A new method predicts vision-related disability in glaucoma patients. Faster visual field loss and lower baseline sensitivity significantly increase the risk of developing disability.

Area of Science:

  • Ophthalmology and Vision Science
  • Clinical Epidemiology
  • Health Outcomes Research

Background:

  • Glaucoma is a leading cause of irreversible blindness worldwide.
  • Vision-related disability significantly impacts patients' quality of life.
  • Predictive models for vision-related disability in glaucoma are crucial for timely intervention.

Purpose of the Study:

  • To introduce a novel methodology for identifying predictive factors of vision-related disability in glaucoma.
  • To develop a model for predicting the onset of vision-related disability in glaucoma patients.

Main Methods:

  • Prospective observational cohort study of 236 glaucoma patients over an average of 4.3 years.
  • Vision-related disability assessed using the National Eye Institute Visual Function Questionnaire (NEI VFQ-25).

Related Experiment Videos

  • Latent transition analysis modeled NEI VFQ-25 data; standard automated perimetry (SAP) evaluated visual field changes (mean sensitivity, MS).

    • Main Results:

    • At baseline, 28% of patients had vision-related disability.
    • Nondisabled patients had a 14.2% probability of developing disability.
    • Faster rates of visual field loss (integrated binocular MS) were significantly associated with increased odds of disability development (OR=3.58 for 0.5 dB/year faster loss).

    Conclusions:

    • A new methodology effectively classifies and analyzes changes in patient-reported outcomes for predicting vision-related disability in glaucoma.
    • Baseline disease severity and the rate of visual field loss are key predictors of future vision-related disability.