Are diurnal and nocturnal intraocular pressure measurements over 48 h justified?

作者：Fischer N; Weinand F; Kuegler M U; Scheel S; Lorenz B^*

来源：Ophthalmologe, 2013, 110(8): 755-+.

DOI：10.1007/s00347-012-2774-x

• Glaucoma
• Intraocular pressure
• Longitudinal IOP measurements
• Pressure profile
• Diurnal fluctuations

Diurnal intraocular pressure (IOP) measurements are recommended in cases of visual field deterioration in glaucoma patients. In this study the rationale of 24 h versus 48 h IOP measurements was investigated. %26lt;br%26gt;Mean IOP and maximum IOP values were obtained in 80 patients over a period of 48 h. The IOP measurements (Goldmann tonometry) of day 1 and 2 (taken every 4 h) were compared. To reduce interindividual and intraindividual differences of measurements the statistical calculation took a tolerance level of +/- 2 mmHg and +/- 1 mmHg into account. %26lt;br%26gt;Maximum IOP measurements were found to differ between 37.5 % and 65.0% respectively for right eyes and 28.8 % and 47.5% respectively for left eyes depending on the measurement tolerance (+/- 2 mmHg or +/- 1 mmHg) between day 1 and day 2. Mean IOP values were found to differ by 25 % and 51.3 % respectively for right eyes and 26.3 % and 46.3% respectively for left eyes (+/- 2 or +/- 1 mmHg in) between day 1 and day 2. A time-related clustering of extreme deviations could not be found but the maximum values from all patients were found to be roughly equally distributed over daytime and nighttime hours. %26lt;br%26gt;Both maximum IOP and mean IOP measurements were found to differ by at least +/- 2 or +/- 1 mmHg between day 1 and 2 at a significant percentage and the maximum values did not peak at a predictable time point during the 48 h. Therefore, 48 h IOP measurements appear to be more reliable than 24 h measurements.

• 出版日期2013-8