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The relationship between visual acuity and functioning and well-being among diabetics
P P Lee1, S M Whitcup, R D Hays
1Doheny Eye Institute, University of Southern California School of Medicine, Department of Ophthalmology, Los Angeles 90033-46669, USA.
Summary
Standard vision tests like Snellen acuity show weak links to patient-reported functioning and well-being in diabetics. These functional measures offer complementary insights beyond clinical vision assessments.
Area of Science:
- Ophthalmology
- Medical Outcomes Research
- Diabetic Complications
Background:
- Growing interest in functional vision capabilities.
- Need to understand the relationship between clinical vision metrics and patient-reported outcomes.
- Diabetic retinopathy is a common complication affecting vision.
Purpose of the Study:
- To investigate the correlation between standard clinical vision measures and self-reported functioning and well-being.
- To assess the association of Snellen visual acuity, Amsler grid distortion, and diabetic retinopathy with patient-reported outcomes.
Main Methods:
- Cross-sectional study of 327 diabetic patients from the Medical Outcomes Study (MOS).
- Evaluated Snellen visual acuity (best and worst eye), Amsler grid distortion, and presence of diabetic retinopathy.
- Assessed self-reported functioning and well-being using the SF-36 questionnaire.
Main Results:
- Weak correlations were found between all clinical vision measures and SF-36 scales (maximum correlation coefficient of 0.15).
- Visual acuity (best and worst eye) was statistically associated only with the physical function scale of the SF-36.
- Amsler grid distortion and diabetic retinopathy showed no significant relationship with any SF-36 scale.
Conclusions:
- Standard clinical measures of vision (Snellen acuity, Amsler grid, diabetic retinopathy) correlate weakly with patient self-reported functioning and well-being.
- Patient-reported functioning and well-being measures provide information complementary to traditional clinical vision assessments.
- Further research may explore the multifaceted nature of visual functioning in diabetic patients.