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  • Title: Oman Eye Study 2005: validity of screening tests used in the glaucoma survey.
    Author: Khandekar R, Al Raisi A.
    Journal: East Mediterr Health J; 2008; 14(6):1360-4. PubMed ID: 19161111.
    Abstract:
    We carried out a validity assessment study for glaucoma screening procedures used during the survey conducted in Oman in 2005 on 6644 eyes in 3324 people > or = 30 years. Ocular pressure and fundus changes were the screening parameters used: glaucoma was found in 433 eyes. Sensitivity for ocular pressure was 49.7% and specificity 95.6%. For optic disc changes, sensitivity was 48.4% and specificity 97.9%. Combining both through parallel testing, sensitivity improved to 67.3% and specificity to 96.5%. An eye may, thus, be declared as not having glaucoma, but cannot be labelled as having glaucoma, using these parameters.
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