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Related Experiment Videos

Should tonometry screening be done by technicians instead of physicians?

R Spector, J B Lightfoote, P Cohen

    Archives of Internal Medicine
    |September 1, 1975
    PubMed
    Summary

    Screening clinic patients aged 40 and older for glaucoma is recommended. Technicians performing tonometry can effectively detect glaucoma, reducing costs and improving accuracy in this patient population.

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    Area of Science:

    • Ophthalmology
    • Public Health
    • Preventive Medicine

    Background:

    • Glaucoma is a leading cause of irreversible blindness.
    • Early detection and intervention are crucial for managing glaucoma.
    • Current screening practices may be suboptimal in primary care settings.

    Purpose of the Study:

    • To determine the prevalence of glaucoma in a clinic population aged 40 years and older.
    • To evaluate the effectiveness and cost-efficiency of glaucoma screening by technicians.
    • To recommend optimal strategies for glaucoma screening in this demographic.

    Main Methods:

    • A random sample of 768 clinic patients aged 40+ were screened using Schiotz tonometry.
    • Patients with intraocular pressure (IOP) ≥ 20 mm Hg were referred for ophthalmological evaluation.

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  • Prevalence rates for frank and suspected glaucoma were calculated.

    • Main Results:

    • The prevalence of frank glaucoma was 1.8%, and suspected glaucoma was 2.5%.
    • The cost per detected case of glaucoma decreased over the study period.
    • A reduction in false-positive results was observed in the latter half of the study.

    Conclusions:

    • Routine glaucoma screening for all clinic patients aged 40 and older is advisable.
    • Technician-led tonometry is an effective method for glaucoma screening.
    • This approach can improve detection rates and reduce healthcare costs associated with glaucoma.