Systemic Approach to Prevent Inadvertent Perfusion in Eyes with Extensive Choroidal Detachment, Suprachoroidal Fluid, and Hypotony During Pars Plana Vitrectomy

Efficacy of Pneumatic Retinopexy Preceding Pars Plana Vitrectomy in Managing Combined Retinal and Choroidal Detachment: A Retrospective Study of 64 Patients

BACKGROUND Combined retinal and choroidal detachment (RD-CD) poses significant challenges in ophthalmic treatment, often requiring surgical intervention for optimal outcomes. The selection of the appropriate surgical procedure is crucial for ensuring visual restoration and overall eye health. This study delves into the therapeutic benefits and outcomes of two distinct surgical approaches for RD-CD: pneumatic retinopexy (PR) followed by pars plana vitrectomy (PPV) and PPV alone, in an attempt to guide optimal clinical decision-making. MATERIAL AND METHODS We retrospectively analyzed data from 64 consecutive patients diagnosed with RD-CD. They were categorized into two groups: Group A consisted of 34 patients (34 eyes) who underwent PR as an initial treatment and subsequently received PPV, while Group B, serving as a control, comprised 30 patients (30 eyes) treated solely with PPV. RESULTS The application of PR in Group A notably accelerated intraocular pressure (IOP) increase (P.

Intraoperative choroidal detachment during small-gauge vitrectomy: analysis of causes, anatomic, and visual outcomes

INTRODUCTION

To investigate the incidence and causes of intraoperative choroidal detachment (CD) during small-gauge vitrectomy, as well as the anatomic and visual outcomes.

METHODS

We retrospectively reviewed the medical records of 1026 consecutive patients who underwent small-gauge vitrectomy from June 2017 to December 2018 at Zhongshan Ophthalmic Centre, Guangzhou, China. Data on the presence, location, and extent of intraoperative CD and its relationship to the infusion cannula were collected. Patient demographic characteristics and postoperative anatomic and visual outcomes were also assessed.

RESULTS

A total of six cases were found to have intraoperative CD, including two with serous CD, three with limited haemorrhagic CD, and one with CD caused by inadvertent perfusion of gas during air/fluid exchange. Retraction of the infusion cannula and acute ocular hypotony were found to be the main causes of intraoperative CD in five out of the six cases. The best-corrected visual acuity of all cases significantly improved after the surgery.

CONCLUSION

The incidence of intraoperative CD during small-gauge vitrectomy is low; the predominant causes are retraction of the infusion cannula and acute ocular hypotony. Immediate awareness and timely closure of the incision may contribute to a better surgical prognosis.

[Intravitreal viscoelastic injection for management of combined choroidal and retinal detachments]

INTRODUCTION

Combined retinal detachment and choroidal detachment (RDCD) is a serious type of retinal detachment occurring mainly in high myopes, which poses many pre-, intra- and postoperative difficulties that can affect the visual prognosis.

MATERIAL AND METHODS

Personal technique used in 8 patients with RDCD, consisting of intravitreal injection (IVI) of a viscoelastic (VE) device 2 to 3 days prior to vitrectomy.

RESULTS

Reattachment of the choroid in all patients, with return to normal IOP, allowing vitrectomy to be performed under optimal conditions.

DISCUSSION

RDCD often occurs in high myopia, especially in the case of an associated giant tear, the mechanism of which involves severe hypotony, resulting in a vicious cycle including development of the choroidal detachment (CD), partial retinal reattachment, normalization of the IOP, redetachment of the retina, and once again, hypotony. Preoperative viscoelastic IVI can break this vicious cycle and reattach the choroid, often within 24 to 48hours. This thus facilitates RD surgery without the intra- and postoperative technical difficulty of managing the CD.

CONCLUSION

Viscoelastic IVI is a simple, safe, inexpensive and reproducible technique for the treatment of CD associated with RD in order to prepare for RD surgery under the usual conditions without a CD.