Correlation and Agreement Between Water Drinking Test and Modified Diurnal Tension Curve in Untreated Glaucoma Patients in Nigeria

2020 ◽  
Vol 29 (6) ◽  
pp. 498-503
Author(s):  
Olayemi P. Olatunji ◽  
Olusola Olawoye ◽  
BGK Ajayi
Keyword(s):  
Water Drinking ◽  
Drinking Test ◽  
Tension Curve ◽  
Water Drinking Test

Evaluation of daily changes of Intraocular pressure in glaucomatous patients with modified diurnal tension curve versus water drinking test

QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Eman Sayed Ahmed ◽  
Mohammed Adel Abdelshafik ◽  
Momen Mahmoud Hamdi ◽  
Noha Mohsen Mahmoud
Keyword(s):  
Intraocular Pressure ◽  
Open Angle Glaucoma ◽  
Control Group ◽  
Case Group ◽  
Provocative Test ◽  
Water Drinking ◽  
Drinking Test ◽  
The Mean ◽  
Tension Curve ◽  
Water Drinking Test

Abstract Background Glaucoma is a chronic optic neuropathy characterized by the excavation of the optic disc due to atrophy of the retinal ganglion cells. A progression of such atrophy leads to reduction of the visual field and eventually to the loss of sight at the end-stage of the disease, Glaucoma is the second leading cause of blindness worldwide Objectives To study the correlation between intraocular pressure (IOP) fluctuation during water drinking test (WDT) and the IOP fluctuation of modified diurnal tension curve (mDTC) in glaucomatous eyes Patients and Methods Fifty participants (24 males and 26 females) were recruited in this prospective study; forty participants with known Primary Open Angle Glaucoma and the other ten participants with non- glaucomatous healthy eyes which served as control. Patients attending the outpatient clinic at Al-Demerdash Hospital and Cairo Fatemic Hospital from October 2018 to March 2019 were prospectively recruited. Four IOP measurements were taken at 8:00 am, 12:00 pm, 4:00 pm and 8:00 pm which represented the mDTC, while WDT was represented by a single measurement of IOP before ingestion of one liter of water over five minutes, followed by three IOP measurements after ingestion of this amount of water at thirty minute intervals. Results Distribution of the studied participants as regards Age and sex: 50 participants were included in the this study. 40 presented the case group (20 males and 20 females) and the mean age of the case group was 54.7 years, 10 presented the control group(4 males and 6 females) and the mean age of the control group was 51.2years. 59% of participants had a peak IOP at 8:00 am, while 10% had a peak IOP at 12:00 pm, 6% at 4:00 pm and 25% of the participants had IOP peak at 8:00 pm during the mDTC. In the WDT, 96% of the participants had a peak IOP after 30 minutes of ingesting one liter of water, while 4% had a peak IOP after 60 minutes. None of the participants had IOP peak after 90 minutes of ingesting one liter of water.. The IOP fluctuations detected during the WDT were significantly correlated to fluctuations observed during the mDTC. Conclusion The data of this study suggested that WDT can be used as a useful provocative test for the detection of the diurnal IOP peaks and fluctuation observed in the glaucoma patients.

scholarly journals Correlation and agreement between the 24-hour diurnal tension curve, the water-drinking test, and the postural-change test in glaucoma patients

2017 ◽  
Vol 1 (3) ◽  
pp. 47-59
Author(s):  
Fauze A. Goncalves ◽  
Fernando Henrique R. Amorim ◽  
Camila S. Zangalli ◽  
Jose Paulo C. Vasconcellos ◽  
Vital P. Costa
Keyword(s):  
Open Angle Glaucoma ◽  
Strong Positive Correlation ◽  
Strong Correlations ◽  
Postural Change ◽  
Poor Agreement ◽  
Positive Correlation ◽  
Water Drinking ◽  
Drinking Test ◽  
Moderate Positive Correlation ◽  
Water Drinking Test

Aim: To investigate whether the water-drinking test (WDT) and the postural-change test (PCT) can predict the 24-hour diurnal tensional curve (DTC) intraocular pressure (IOP) peak and fluctuation by assessing the correlation and agreement between these three tests in medically treated primary open-angle glaucoma (POAG) patients.Methods: 18 POAG patients underwent the DTC, WDT and PCT. Pearson’s correlation coefficient and Bland-Altman plots were used to assess the correlation and agreement between the results, respectively.Results: Mean DTC IOP peak was 18.72 + 4.31 mmHg and mean DTC IOP fluctuation was 7.00 + 2.54 mmHg. The IOP peak was outside office hours in 50% of the subjects. We observed poor correlations between the DTC and WDT fluctuations and the DTC and PCT fluctuations (r=-0.125, P=0.619; r=0.349, P=0.155, respectively). There was a moderate positive correlation between the DTC and WDT peaks (r=0.493, P=0.03) and a strong positive correlation between the DTC and PCT peaks (r=0.722, P<0.001). However, Bland-Altman plots demonstrated poor agreement between the IOP peaks and fluctuations between the 3 tests. WDT and DTC IOP peaks differed by 2 mmHg or more in 56% of the measurements. PCT and DTC IOP peaks showed that 83% of the measurements had differences greater than 2 mmHg.Conclusions: Despite moderate to strong correlations between DCT and WDT peaks and DTC and PCT IOP peaks, the agreement was generally poor, suggesting that they should be used with caution to estimate peak IOP.

Author Response, “The Water-drinking Test and Glaucoma Progression

2018 ◽  
Vol 27 (1) ◽  
pp. e26-e28
Author(s):  
Carlos G. DeMoraes ◽  
Remo Susanna ◽  
Lisandro M. Sakata ◽  
Marcelo Hatanaka
Keyword(s):  
Author Response ◽  
Glaucoma Progression ◽  
Water Drinking ◽  
Drinking Test ◽  
Water Drinking Test
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