Perfluorocarbons and semifluorinated alkanes.

Area of Science:

• Ophthalmology
• Surgical Technology
• Biomaterials Science

Background:

• Vitreoretinal surgery has advanced significantly with the development of perfluorocarbons (PFCs) and semifluorinated alkanes (SFAs).
• These compounds serve dual roles as intraoperative aids and internal tamponade agents.
• Understanding their properties is key to optimizing their surgical application.

Purpose of the Study:

• To review the physical and chemical properties of PFCs and SFAs.
• To discuss their indications, outcomes, and potential complications in vitreoretinal surgery.
• To evaluate their efficacy as internal tamponade agents and examine toxicity data.

Main Methods:

• Literature review of physical and chemical properties of PFCs and SFAs.
• Analysis of surgical indications, results, and complications.
• Assessment of tamponade effectiveness using specific gravity, contact angle, viscosity, and model eye studies.
• Examination of existing animal and human toxicity data.

Main Results:

• PFCs and SFAs possess distinct physical and chemical properties influencing their surgical utility.
• Their effectiveness as tamponade agents varies based on properties like specific gravity and viscosity.
• Evidence regarding the toxicity of these agents in both animal models and human subjects was reviewed.

Conclusions:

• PFCs and SFAs are valuable tools in vitreoretinal surgery, offering distinct advantages.
• Careful consideration of their properties and potential risks is necessary for safe and effective use.
• Further research into long-term safety and efficacy may refine their application in complex retinal detachments.