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      Comparative study of three non-contact tonometers and the Goldmann tonometer.

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          Abstract

          The main objective of this study was to find out how well three non-contact tonometers (Pulsair, Xpert-NCT and CT-20) compare with the Goldmann tonometer (GT). Sensitivity, specificity, positive and negative predictive values were all evaluated for an intraocular pressure (IOP) > or = 21 mm Hg. We also calculated the mean IOP, the correlation and the dispersion of the results. The difficulty in using the instruments, the patient's attitude and subjective comfort of IOP measuring were also evaluated. We describe the advantages and shortcomings of non-contact tonometers as screening tools to detect elevated IOP in the general population.

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          Author and article information

          Journal
          Ophthalmologica
          Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde
          S. Karger AG
          0030-3755
          0030-3755
          1994
          : 208
          : 3
          Affiliations
          [1 ] Departamento de Oftalmología, Universidad de Navarra, Pamplona, Spain.
          Article
          10.1159/000310466
          8065693
          e160ece8-5e88-413a-85f1-392d93c95552
          History

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