Several factors led to inaccurate ADE detection algorithms, including immature underlying information systems, non-standard event definitions, and variable methods for detection rule validation. Few ADE detection algorithms considered clinical priorities. To enhance the utility of electronic detection systems, there is a need to systematically address these factors.

Ocular hypertension (OHT) is the only known modifiable risk factor of glaucoma development. Intraocular pressure (IOP)-lowering therapy reduces the risk of glaucoma development. The 5-year risk of glaucoma conversion is <10% for untreated OHT patients. Cost-effectiveness analyses suggested that it is not costeffective to treat all patients with OHT. Treatment should be targeted towards the higher-risk group-namely, patients with older age, a higher level of IOP, a thinner central corneal thickness (CCT), a larger vertical cup-to-disc ratio (VCDR) and a smaller pattern standard deviation (PSD) value on visual field (VF) test. These risk factors were established by the Ocular Hypertension Treatment Study (OHTS) and the European Glaucoma Prevention Study (EGPS). However, there is significant variability in the measurement of the currently known risk factors, especially if the assessment is taken from a longitudinal perspective. This can lead to overtreatment or under-treatment: the former exposing the patient to unnecessary side effects of IOP-lowering eye drops and the latter putting the patient at risk of developing glaucoma. The advancement of new VF algorithm and ocular imaging can lead to the identification of new approaches to risk stratification and, thus, more specific treatment for OHT patients.

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