Water-Drinking Test in Central Serous Chorioretinopathy

Area of Science:

• Ophthalmology
• Retinal Diseases
• Choroidal Imaging

Background:

• Central serous chorioretinopathy (CSCR) is a condition affecting the choroid.
• Understanding choroidal changes in response to stimuli like the water-drinking test (WDT) is crucial for CSCR management.

Purpose of the Study:

• To evaluate choroidal changes in central serous chorioretinopathy (CSCR) patients after a water-drinking test (WDT).

Main Methods:

• Prospective study of treatment-naïve acute and chronic CSCR eyes and healthy controls.
• Measurements included intraocular pressure, optical coherence tomography, and choroidal vascular index (CVI) at baseline and 15, 30, 45 minutes post-WDT.
• Analysis of variance (ANOVA) was used to assess changes in choroidal parameters.

Main Results:

• Baseline choroidal area, luminal area, and stromal area were higher in acute CSCR eyes versus controls.
• Chronic CSCR eyes showed increased choroidal and stromal area, with decreased luminal area at 15 minutes post-WDT.
• Significant decreases in CVI were observed in chronic CSCR and fellow eyes of acute CSCR at later time points; ANOVA revealed significant changes in central macular thickness, choroidal thickness, stromal area, and total choroidal area, but no interaction with eye type.

Conclusions:

• While the water-drinking test induced choroidal changes in CSCR patients, these changes were not significantly different across acute CSCR, chronic CSCR, and control groups.
• The study highlights dynamic choroidal responses to WDT in CSCR, though intergroup differences were not statistically significant.