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Untreated ocular hypertension. A long-term prospective study

Y Kitazawa, T Horie, S Aoki

    Archives of Ophthalmology (Chicago, Ill. : 1960)
    |July 1, 1977
    PubMed
    Summary
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    Untreated ocular hypertension rarely progresses to glaucoma. Clinical findings showed poor predictive value for identifying patients who develop visual field defects, indicating a need for improved diagnostic methods.

    Area of Science:

    • Ophthalmology
    • Glaucoma Research

    Background:

    • Ocular hypertension (OHT) is a condition characterized by elevated intraocular pressure (IOP) without optic nerve damage or visual field loss.
    • The natural history of untreated OHT and the predictive value of clinical findings remain areas of active investigation.

    Purpose of the Study:

    • To determine the long-term course of ocular hypertension in patients without visual field loss when left untreated.
    • To evaluate the efficacy of various clinical findings in predicting the progression of ocular hypertension to glaucoma.

    Main Methods:

    • A prospective study followed 75 patients with IOP > 21 mm Hg and no visual field defects.
    • Patients were observed for at least nine years without glaucoma therapy.
    • Sensitivity and specificity of clinical findings were assessed for predicting visual field defects.

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    Main Results:

    • Seven out of 75 (9.3%) patients with ocular hypertension developed glaucomatous visual field defects over the follow-up period.
    • None of the assessed clinical findings demonstrated good sensitivity or specificity in predicting the development of visual field defects.

    Conclusions:

    • Untreated ocular hypertension has a low but significant risk of progression to glaucoma.
    • Current clinical findings are not reliable predictors for identifying individuals with ocular hypertension who will progress to develop visual field defects.