The efficacy of fluid-gas exchange for the treatment of postvitrectomy retinal detachment
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Updated: Jun 17, 2026

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Published on: April 14, 2026
Ji Hye Jang1, Yu Cheol Kim, Kwang Soo Kim
1Department of Ophthalmology, Dongsan Medical Center, Keimyung University College of Medicine, #194 Dongsan-dong, Jung-gu, Daegu, Korea.
Purpose:
This study was designed to evaluate the efficacy of fluid-gas exchange for the treatment of postvitrectomy retinal detachment.
Methods:
We retrospectively reviewed the records of 33 consecutive patients (35 eyes) who underwent fluid-gas exchange treatment for postvitrectomy retinal detachment using the two-needle pars plana approach technique.
Results:
The retinal reattachment rate was 80.0% after complete intravitreal gas disappearance following the fluid-gas exchange; the overall success rate was 65.7%. Visual acuity was improved or stable in 80.0% of cases; a two-line or greater vision improvement or a best-corrected visual acuity of 0.4 or better occurred in 62.9% of cases. The success rates for superior retinal detachments and posterior pole retinal detachments were 76.5% and 85.7%, respectively.
Conclusions:
Fluid-gas exchange represents a simple and cost-effective alternative outpatient procedure for retinal reattachment without reoperation for the treatment of superior and posterior pole retinal detachments.

