Effect of Silicone Oil on Peripapillary Capillary Density in Patients with Rhegmatogenous Retinal Detachment

Overview

Journal BMC Ophthalmol

Publisher Biomed Central

Specialty Ophthalmology

Date 2020 Jul 9

PMID 32635899

Citations 11

Authors

Erqian Wang

Youxin Chen

Ningning Li

Hanyi Min

Affiliations

Soon will be listed here.

Abstract

Purpose: To evaluate the effect of silicone oil (SO) on peripapillary blood flow using OCT angiography.

Methods: This prospective case series recruited patients with unilateral rhegmatogenous retinal detachment (RRD) who underwent vitrectomy and SO tamponade. Patients were examined before SO removal and at 10 days, 1 month, and 3 months after SO removal on a spectral domain OCT angiography device (RTVue XR Avanti, Optovue Inc., CA, USA) for the measurement of radial peripapillary capillaries (RPC) vessel density (VD) in global field, superior hemifield, and inferior hemifield. Changes in RPC VD following SO removal were compared between affected eyes and contralateral eyes.

Results: Twenty-two patients were analyzed. The average duration of SO tamponade was 101.3 days (range, 90 to 119 days). After SO removal, global RPC VD increased by 1.3% (95%CI, 0.3 to 2.3%), compared with a - 0.4% (95%CI, - 1.4 to 0.7%) change in contralateral eyes (P = 0.007). The increase in RPC VD after SO removal mainly occurred in the superior hemifield, which was 1.6% (95%CI, 0.6 to 2.7%). The increase in RPC VD in the inferior hemifield was 1.0% (95%CI, - 0.2 to 2.1%) after SO removal.

Conclusions: We detected a mild increase in peripapillary capillary density after SO removal, mainly in the superior hemifield. Our results suggested that SO tamponade could have negative effect on peripapillary blood flow, possibly by capillary compression.

Citing Articles

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