Abstract
Abstract Purpose: To review the role and utility of 24‐hour, or diurnal IOP monitoring in the management of glaucoma Methods: Current glaucoma practice generally involves single IOP readings at each visit owing to time, convenience and cost considerations. A single IOP measurement however, gives data for only one minute of the day and does not reflect the dynamic equilibrium of IOP during the 24‐hour cycle. There is significant unpredictability of single IOP measurements and poor correlation between single IOP readings and peak, or fluctuation of 24‐hour IOP. 24‐hour or diurnal IOP monitoring can provide valuable information for the diagnosis and management of glaucoma. Results: Although 24‐hour monitoring is especially helpful in advanced or progressive glaucoma a simplified diurnal curve (IOP readings at 10:00, 14:00 and 18:00) can be successfully employed in most glaucoma cases. Conclusions: A simplified diurnal curve can provide reasonable quality of IOP information and help us setting a better target pressure. Better understanding of the prognostic value of 24‐hour IOP characteristics and the ideal target 24‐hour IOP are needed in the future.
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