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PREVALENCE AND MORPHOLOGIC BIOMARKERS OF METAMORPHOPSIA IN EYES WITH "RESOLVED" CHRONIC CENTRAL SEROUS
Enrico Borrelli1,2, Costanza Barresi1,2, Marco Battista1,2
1Vita-Salute San Raffaele University Milan, Milan, Italy.
Purpose:
To assess relationships between demographics, clinical characteristics, and optical coherence tomography characteristics with persistence of metamorphopsia after resolution of subretinal fluid in eyes with chronic central serous chorioretinopathy.
Methods:
One-hundred participants with "resolved" (absence of subretinal fluid) chronic central serous chorioretinopathy were retrospectively analyzed. Patients underwent a complete ophthalmologic evaluation, including assessment of the presence of metamorphopsia. At the study visit, optical coherence tomography scans were reviewed for qualitative and quantitative features.
Results:
Sixty-six of 100 patients (66.0%) complained of metamorphopsia. Both the foveal and parafoveal ganglion cell complex thicknesses were thinner in central serous chorioretinopathy eyes with metamorphopsia (35.1 ± 10.6 µ m and 82.0 ± 18.1 µ m vs. 40.7 ± 11.8 µ m and 93.1 ± 13.5 µ m, P = 0.030 and P < 0.0001). In the foveal region, the outer plexiform layer and outer nuclear layer thicknesses were thinner in patients with metamorphopsia (24.6 ± 8.5 µ m and 63.1 ± 20.9 µ m vs. 29.1 ± 8.7 and 76.2 ± 18.2 µ m, P = 0.016 and P = 0.005). The ellipsoid zone band was more frequently discontinued in eyes with metamorphopsia (56.1% vs. 35.3%, P = 0.039). Multivariate stepwise linear regression analysis demonstrated that the strongest associations with the presence of metamorphopsia were with parafoveal ganglion cell complex thickness ( P = 0.004), foveal outer nuclear layer thickness ( P = 0.010), and number of previous recurrences of subretinal fluid accumulation ( P = 0.017). The time interval from the last subretinal fluid resolution was not associated with the presence of metamorphopsia.
Conclusion:
In "resolved" central serous chorioretinopathy, clinical aspects (i.e., number of previous recurrences) and structural changes (i.e., ganglion cell complex and outer nuclear layer thinning) are associated with metamorphopsia after subretinal fluid resolution.
