Perfluorohexylethan (O62) as ocular endotamponade in complex vitreoretinal surgery.

Area of Science:

• Ophthalmology
• Retinal Surgery
• Vitreoretinal Surgery

Background:

• Complex vitreoretinal surgery often requires effective ocular endotamponades.
• Perfluorohexylethan (O62) is a partially fluorinated alkane with potential tamponade properties.

Purpose of the Study:

• To evaluate the safety and efficacy of perfluorohexylethan (O62) as an intraoperative tool and endotamponade.
• To assess O62's performance in complex vitreoretinal surgeries, particularly for inferior retinal pathologies.

Main Methods:

• A prospective clinical study involving 11 patients undergoing pars plana vitrectomy.
• O62 was used as a postoperative endotamponade for conditions including proliferative vitreoretinopathy and retinal detachment.
• Median tamponade duration was 43 days, with a median follow-up of 16 months post-removal.

Main Results:

• Achieved 100% initial retinal attachment rate.
• Retinal reattachment was maintained in 7 of 11 eyes post-O62 removal.
• Significant complications included severe emulsification, secondary cataracts in phakic eyes, anterior segment inflammation, and transient intraocular pressure spikes.

Conclusions:

• O62 demonstrates effective tamponade for the inferior retina for up to 6 weeks.
• Severe emulsification and potential inflammatory effects limit O62's clinical utility as a postoperative tamponade.