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Influence of Postoperative Posture on Macular Slippage after Macula-Off Retinal Detachment: A Randomized Controlled
Megir Schawkat1, Christophe Valmaggia1, Corina Lang1
1Eye Clinic, Cantonal Hospital Sankt Gallen, St. Gallen, Switzerland.
Introduction:
To evaluate the effect of postoperative posture on the retinal shift after retinal detachment repair.
Methods:
Patients who underwent pars plana vitrectomy (PPV) for macula-off rhegmatogenous retinal detachment (RRD) were included prospectively in the current study. Patients were randomized into two groups: group A included patients who did a log roll postoperatively, and group B included patients who had to lie flat on their backs for 6 h postoperatively before moving into the end position. Patients in group A and patients in group B were reviewed after 3 weeks and after 6 weeks, respectively, and fundus autofluorescence images (FAF) were obtained to visualize the retinal rotation.
Results:
The sample included 50 eyes from 49 patients. Retinal shift occurred after RRD repair in 17 patients (34%). There was no statistically significant difference between the two groups (p = 0.94). Postoperative macular shift occurred significantly less often (p = 0.049) in participants in whom heavy fluid was used in the procedure. Metamorphopsia was reported postoperatively by 10 of 17 patients with retinal shift (p < 0.001).
Conclusion:
In our study, postoperative posture did not significantly influence postoperative macular slippage after RRD repair. The use of intraoperative heavy liquid appears to be associated with a lower occurrence of retinal shift.
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