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Related Experiment Videos

Visual acuity in a diabetic population.

B Jerneld, P Algvere

    Acta Ophthalmologica
    |April 1, 1987
    PubMed
    Summary

    Diabetic retinopathy causes more blindness in insulin-treated patients than those on oral antihyperglycaemic agents (OHA). This study highlights the need for better diabetes management to prevent vision loss.

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    Area of Science:

    • Ophthalmology
    • Endocrinology
    • Public Health

    Background:

    • Diabetes mellitus is a leading cause of preventable blindness worldwide.
    • Visual impairment and blindness significantly impact quality of life for diabetic patients.
    • Different diabetes treatment modalities may influence the risk and causes of vision loss.

    Purpose of the Study:

    • To compare the prevalence and causes of visual impairment and blindness in insulin-treated versus oral antihyperglycaemic agent (OHA)-treated diabetic populations.
    • To identify factors associated with visual acuity in these diabetic groups.

    Main Methods:

    • Population-based study in Gotland, Sweden, including all insulin-treated and a random sample of OHA-treated diabetics.
    • Visual acuity (VA) assessment.
    • Logistic regression analysis to determine correlations between VA and various factors including diabetic retinopathy, age, and treatment type.

    Main Results:

    • Higher prevalence of visual impairment (7.2% vs 4.9%) and blindness (1.4% vs 4.4%) in OHA-treated versus insulin-treated diabetics, respectively.
    • Diabetic retinopathy was the primary cause of vision loss in insulin-treated patients (72%), while cataract and age-related maculopathy predominated in OHA-treated patients.
    • Blindness was four times more frequent in insulin-treated females than males, explained by diabetic retinopathy and age.
    • After age standardization, blindness remained significantly higher in insulin-treated (6.7%) compared to OHA-treated (1.4%) diabetics.

    Conclusions:

    • Diabetic retinopathy is a major contributor to blindness in insulin-treated diabetics, particularly in women.
    • Age and diabetic retinopathy are significant predictors of visual acuity loss in insulin-treated patients.
    • Even after accounting for age, insulin-treated diabetics exhibit a higher rate of blindness, suggesting treatment-specific or disease-progression-related factors warrant further investigation.

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