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I. Maruko, T. Sekiryu, M. Saito, K. Saito, T. Iida; The Morphologic Changes in the Outer Layer of Detached Retina in Rhegmatogenous Retinal Detachment and Central Serous Chorioretinopathy. Invest. Ophthalmol. Vis. Sci. 2007;48(13):5743.
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© ARVO (1962-2015); The Authors (2016-present)
To examine the changes in the outer layer of detached retina in rhegmatogenous retinal detachment (RRD) and central serous chorioretinopathy (CSC) with Optical Coherence Tomography (OCT)
Fifteen eyes (15 patients) with RRD and 16 eyes (16 patients) with CSC were studied by OCT-Ophthalmoscope. All patients had retinal detachment including macula area within one month after subjective onset. We measured the height of foveal retinal detachment, and thickness of the outer retinal nuclear layer (ONL) and the detached sensory retina. The thickness of ONL and detached sensory retina were measured at 2 degrees from the center of the fovea using vertical and horizontal scans at initial OCT examination. We also measured visual outcome during follow-up. We made a comparative study of the anatomical data and visual acuity.
The mean best collected visual acuity (BCVA) at the baseline and reattachment was 0.82 and 1.20 in CSC group, and 0.32 and 0.75 in RRD group, respectively. The thickness of ONL at the initial examination was 67.0 ± 12.0µm in CSC group, but it was 134 ± 62µm in RRD group which significantly thickened in RRD group (P<0.001). The thickness of the detached sensory retina was 298 ± 38µm in CSC group and 369 ± 136µm in RRD group. There was no significant difference (P=0.70). A height of detachment in CSC group was correlated with initial BCVA (R=0.51, P=0.05), but it was no correlation with final BCVA. In RRD group, BCVA after reattachment was correlated with the thickness of ONL and the height of detachment (R=0.75, P=0.004; R=0.55, P=0.03, respectively).
The outer nuclear layer was thickened in RRD group, and the structure of detached sensory retina was preserved in CSC. The difference of morphologic changes of the retinal outer layer in retinal detachment could possibly be associated with visual functions.
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