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Retina

Silicone Oil Tamponade in Rhegmatogenous Retinal Detachment: Functional and Morphological Results

ORCID Icon, , , &
Pages 38-45 | Received 10 May 2019, Accepted 01 Aug 2019, Published online: 03 Sep 2019
 

ABSTRACT

Purpose

To evaluate the functional and morphological outcomes of patients with SO tamponade due to primary rhegmatogenous retinal detachment (primRD) and recurrent rhegmatogenous detachment (recRD).

Methods

Seventy-five eyes were enrolled in this prospective study between January 2009 and December 2016. Patients with primRD and recRD were evaluated in a complete ophthalmic examination including best-corrected visual acuity (BCVA) and OCT before and after silicone oil removal (SOR).

Results

The primRD group comprised 35 eyes and the recRD group 40 eyes with a duration of SO tamponade of 9 ± 4/12 ± 11 months in the primRD/recRD groups (p = .088). The preoperative OCT revealed a high rate of morphological changes such as ERM (primRD: 24%; recRD: 69%) and CME (primRD: 10%; recRD: 55%) in the recRD compared with the primRD group (ERM: p = .18; CME: p = .04). No such difference was observed postoperatively. Disruption of the ellipsoid zone (EZ) was similar in both groups (primRD: 52%; recRD: 72%) before SOR and was restored in 66%/58% (primRD/recRD) after SOR. No difference was found regarding pre- and postoperative VA (0.91 ± 0.54/0.90 ± 0.54logMAR primRD/recRD preoperative; 0.76 ± 0.56/0.71 ± 0.53logMAR primRD/recRD at the last follow-up; p = .96/p = .70). EZ integrity (0.43 ± 0.31logMAR) was associated with better functional results than an interrupted EZ (0.86 ± 0.43logMAR; p < .001). A significant positive correlation of the duration of SO tamponade and the final VA was found in the primRD (r = 0.396, p = .02) whereas none in the recRD group (r = 0.196; p = .31).

Conclusion

Morphological changes including ERM and CME were more pronounced in the recRD group, but only before SOR. Interestingly, the pre- and postoperative BCVA were similar in both groups with EZ integrity being a factor of good functional outcome. The duration of SO tamponade had a statistically significant negative impact on the postoperative VA in the primary detachments.

Declaration of interests

The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.

Correction Statement

This article has been republished with minor changes. These changes do not impact the academic content of the article.

Color versions of one or more of the figures in the article can be found online at www.tandfonline.com/icey.

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