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The accuracy of the inferior>superior>nasal>temporal neuroretinal rim area rule for diagnosing glaucomatous optic disc damage.
Morgan James E, Bourtsoukli Ioanna, Rajkumar Kadaba N, Ansari Ejaz, Cunliffe Ian A, North Rachel V et al.
OphthalmologyApr 201225 citationsCross-Sectional Study
This study found the ISNT rule (inferior>superior>nasal>temporal neuroretinal rim area) has limited accuracy for diagnosing glaucomatous optic disc damage, suggesting it's not a reliable diagnostic tool in clinical practice.