Clinical Comparison of the Berens-Tolman Ocular Hypertension Indicator with the SchiOtz Tonometer
- 1 July 1959
- journal article
- research article
- Published by American Medical Association (AMA) in Archives of Ophthalmology (1950)
- Vol. 62 (1) , 75-77
- https://doi.org/10.1001/archopht.1959.04220010079008
Abstract
In recent years, surveys have indicated that approximately 2% of persons over 40 years of age have undiagnosed glaucoma.1-3In order to detect chronic simple glaucoma in its early symptomless stage, it seems desirable that in patients over 40 tensions should be taken routinely during general physical examinations. With this in mind, the Berens-Tolman Ocular Hypertension Indicator was introduced4to the medical profession in 1950 and was later modified somewhat as described in a statistical report of its use by Cholst and Horotivtz.5In the latter paper, the Berens-Tolman and Schiøt instruments were compared on 180 glaucoma patients (numbber of eyes not stated), with use of a 5.5 gm. weight on the Schiøtz tonometer and the 1948 Schiøtz calibration scale. Of 57 eyes with tensions elevated to between 30 and 60 mm. Hg, 54 (95%) registered "high" on the OHI and 3 (5%) registered "normal" (false negativesKeywords
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