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Early changes in foveal thickness in eyes with central serous chorioretinopathy
Masayuki Hata1, Akio Oishi, Masataka Shimozono
1Department of Ophthalmology, Kobe City Medical Center General Hospital, Kobe, Japan.
Purpose:
To investigate when and how fast the foveal thinning occurs in central serous chorioretinopathy.
Methods:
Outer nuclear layer (ONL) thickness was measured in 60 eyes of 60 patients with active central serous chorioretinopathy. Patients were divided into 3 groups based on the duration of symptoms; within 1 month (Group A, 25 eyes), 1 to 6 months (Group B, 17 eyes), and >6 months (Group C, 18 eyes). Outer nuclear layer thickness and visual acuity were compared between each group. Some of the patients underwent several examinations and serial changes were analyzed.
Results:
The ONL thickness was correlated with the duration of symptoms (R = -0.61, P < 0.001). Visual acuity was worse in Group C compared with Group A (P = 0.003). The mean ONL thickness of each group and healthy contralateral eyes was 82.4, 70.2, 53.5, and 89.3 μm, respectively. Comparisons between each group showed statistical significances. Seventeen eyes in Group A were re-examined between 3 and 6 months after the first visit. The mean ONL thickness significantly decreased from 81.9 μm to 75.0 μm (P = 0.020).
Conclusion:
In central serous chorioretinopathy, ONL thinning starts in the early stage and may continue as long as the subretinal fluid persists.
