Table 4-16Flashlight Test vs. gonioscopic methods - Clinical study characteristics

OutcomeNumber of studiesDesignLimitationsInconsistencyDirectnessOther considerations
Diagnostic accuracy at cut- off of 1/2 shadow 1491Diagnostic studyNo serious limitationsNo serious inconsistencySerious indirectness (a)
Diagnostic accuracy at cut- off of 1/3 shadow 1491Diagnostic studyNo serious limitationsNo serious inconsistencySerious indirectness (a)
a

The study is in patients from the Indian sub-continent where the prevalence of closed-angles tends to be higher.

From: 4, Diagnosis of patients with ocular hypertension, chronic open angle glaucoma and suspected chronic open angle glaucoma

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Glaucoma: Diagnosis and Management of Chronic Open Angle Glaucoma and Ocular Hypertension.
NICE Clinical Guidelines, No. 85.
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