Excessive reliance on intraocular pressure to detect glaucoma leaves many affected patients undiagnosed and untreated; visualisation of the optic disc is a dying art that needs to be revived
Intraocular pressure (IOP) is measured by tonometry. In our community, mean IOP is around 15 mmHg, with a normal range (mean ± 2 SD) regarded as 10–21 mmHg. This information is irrelevant to the diagnosis of glaucoma.
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