Choroidal Thickness Changes After Vitrectomy With Silicone Oil Tamponade for Proliferative Vitreoretinopathy Retinal Detachment

Odrobina, Dominik; Gołębiewska, Joanna; Maroszyńska, Iwona

doi:10.1097/iae.0000000000001437

Cited by 25 publications

(26 citation statements)

References 10 publications

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“…This may suggest that in our study, the decrement in choroidal thickness may have been due to the SO and not secondary to PPV. Similar to our study, Odroniba et al [13] reported that SFCT decreased after PPV+SO, but they used 1,000-cSt SO and the follow-up duration was 6 months, while we used 5,700-cSt SO and a follow-up duration lasting up to 18 months for some patients. In contrast to our study, Akkoyun and Yilmaz [9] did not find any changes in choroidal thickness after PPV+SO in the RRD eyes, but they had fewer cases (8 patients) and the duration of follow-up was only 6 months.…”

Section: Discussionsupporting

confidence: 86%

“…A few earlier studies had reported the changes in the choroidal thickness after vitrectomy for treatment of RRD [9,11,13]. Some authors performed vitrectomy plus C 3 F 8 gas tamponade for macula-off RRD and, unlike our study, they showed no significant change in the choroidal thickness 1 month and 6 months after vitrectomy [11].…”

Section: Discussioncontrasting

confidence: 65%

“…Since there is a steady current of water and ions across the retina and the retinal pigment epithelium into the choroid, alteration of this flow could have negative effects on the choroidal thickness [14], leading to choroidal thinning. Another mechanism for decreased retinal and choroidal thickness in eyes with SO was proposed by Odrobina et al [13]. They suggested that SO could cause a kind of microangiopathy in the retina and choroid, and a subsequently altered blood flow and ischemia could cause retinal and choroidal thinning [13].…”

Section: Discussionmentioning

confidence: 99%

“…Another mechanism for decreased retinal and choroidal thickness in eyes with SO was proposed by Odrobina et al [13]. They suggested that SO could cause a kind of microangiopathy in the retina and choroid, and a subsequently altered blood flow and ischemia could cause retinal and choroidal thinning [13].…”

Section: Discussionmentioning

confidence: 99%

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Effects of Intravitreal Silicone Oil on Subfoveal Choroidal Thickness

et al. 2018

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Purpose: To evaluate the effects of intravitreal silicone oil (SO) on subfoveal choroidal thickness (SFCT). Methods: A total of 60 patients with unilateral pseudophakic macula-off rhegmatogenous retinal detachment were treated with a three-port pars plana vitrectomy and a 5,700-cSt SO endotamponade and subsequent SO removal. SFCT was measured before and 3 months after SO removal. The main outcome measure was the difference between the SFCT of operated eyes and the fellow eyes. Results: Before SO removal, the mean SFCT differences in group 1 (3–6 months’ duration of SO), group 2 (6–9 months’ duration of SO), and group 3 (9–18 months’ duration of SO) were –14.8, –25.5, and –62.1 µm, respectively (p = 0.002, r = 0.398). Three months after SO removal, the mean SFCT differences in group 1, group 2, and group 3 were –13.4, –23.3, and –59.0 µm, respectively (p = 0.002, r = 0.393). Conclusion: SFCT decreased significantly in eyes with long-term (≥6 months) intravitreal SO tamponade. Choroidal thinning did not improve after SO removal.

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Section: Discussionsupporting

confidence: 86%

Section: Discussioncontrasting

confidence: 65%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Effects of Intravitreal Silicone Oil on Subfoveal Choroidal Thickness

et al. 2018

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“…In this retrospective observational study, we observed a decrease in subfoveal choroidal thickness in the second month (8±2 weeks) following SO removal compared to the first month after the PPV and SO injection in patients who underwent PPV and SO injection due to RRD. Several studies have shown that choroidal thickness decreases after PPV (7)(8)(9). In a study regarding the changes in choroidal thickness in patients undergoing PPV and C3F8 injection due to RRD with macular involvement, it has shown that the subfoveal choroidal thickness has not changed (10).…”

Section: Discussionmentioning

confidence: 99%

The Effect of Silicone Oil Endotamponade on Subfoveal Choroidal Thickness After Pars Plana Vitrectomy for Rhegmatogenous Retinal Detachment

Bölükbaşı¹

2019

Beyoglu Eye J

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To evaluate the potential effects of 1000-cSt silicone oil (SO), which is used for pars plana vitrectomy (PPV) surgery on subfoveal choroidal thickness. Methods: In this retrospective study, 20 eyes of 20 patients who had undergone PPV and SO injection surgery for maculaoff rhegmatogenous retinal detachment were included. Complete ophthalmologic examinations were performed before the surgery, one month, three months after PPV and two months after silicone oil removal. After one month following PPV and SO injection and two months following silicone oil removal, subfoveal choroidal thickness was evaluated using EDI (enhanced depth imaging) mode of spectral-domain optical coherence tomography. Results: Subfoveal choroidal thickness measurements decreased statistically significantly at two months after silicone oil removal compared to the first month of PPV and SO injection. The mean subfoveal choroidal thickness was 284.2±54.2 µm at one month after PPV and SO injection, while it was 258.8±52.8 µm at two months after SO removal (p<0.001). Conclusion: After the removal of SO subfoveal choroidal thickness measurements decreased, the changes of subfoveal choroidal thickness measurements may be a parameter for the timing of SO removal.

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