Perfluoro-n-octane is a special heavy liquid used by eye surgeons during operations to flatten the retina, especially in cases of retinal detachment or giant retinal tears.
| Drug class | Heavy Liquid (PFCL) |
|---|---|
| Type | Single |
| Forms | Intraocular (intra-op) |
| Common strength | N/A |
| Common Indian brands | Perfluoron and similar |
| Prescription status | Prescription (hospital use) |
What Perfluoro-n-octane is used for
Perfluoro-n-octane is a crucial medicine used in eye surgery, specifically for conditions affecting the retina. The retina is the light-sensitive layer at the back of your eye that sends visual information to your brain. When the retina detaches or tears significantly, it can lead to severe vision loss if not treated promptly.
This medicine is used by eye surgeons during operations to help with:
- Flattening the retina during retinal detachment surgery: Retinal detachment is a serious condition where the retina pulls away from its normal position. Surgery is often required to reattach it.
- Treating giant retinal tears: These are large, severe tears in the retina that also require surgical intervention to repair and prevent further vision loss.
In essence, Perfluoro-n-octane assists the surgeon in carefully repositioning and flattening the retina during these complex procedures, paving the way for successful reattachment and healing.
How it works
Perfluoro-n-octane works as a ‘heavy liquid’ inside your eye during surgery. Imagine it like a gentle, clear weight that the surgeon uses. When placed inside the eye, this heavy liquid carefully presses the detached or torn retina back into its proper, flat position. This temporary flattening allows the surgeon to perform other necessary steps, such as laser treatment or cryopexy (freezing treatment), to secure the retina permanently. Once the retina is flattened and secured, the Perfluoro-n-octane is carefully removed from the eye by the surgeon before the operation is complete. It is a tool used during the surgery itself, not something that stays in your eye long-term.
How it’s used
Perfluoro-n-octane is not a medicine you would ever use at home or apply yourself. It is an ‘intraocular’ medicine, meaning it is used inside the eye during surgery. This procedure is performed exclusively by a qualified ophthalmologist (eye surgeon) in a hospital or clinic setting.
Here’s how it is typically used:
- During your retinal detachment or giant tear surgery, the surgeon will carefully introduce a small amount of Perfluoro-n-octane into your eye.
- The heavy liquid then gently flattens the retina, allowing the surgeon to work on repairing it.
- Once the retina is successfully flattened and secured, the surgeon will meticulously remove all of the Perfluoro-n-octane from your eye before concluding the surgery.
It is crucial to understand that this medicine is a surgical aid and is always removed from the eye at the end of the procedure. It is never left in the eye permanently.
Always follow your ophthalmologist’s exact instructions.
Brands available in India
- Perfluoron and similar
Brand availability and pricing vary; confirm with your pharmacist.
Good to know
Prescription eye medicine — use only as directed by a qualified ophthalmologist. This page is for general education and is not a substitute for professional medical advice, diagnosis or a prescription. Do not self-medicate or reuse an old prescription. This is given only by specialists in a hospital or clinic setting and is never for self-use.
Precautions & side effects
As Perfluoro-n-octane is used exclusively by specialists during surgery, most precautions are managed by the surgical team. However, it is important for patients to be aware of the following key point:
- Not left in the eye: A critical precaution is that Perfluoro-n-octane must be completely removed from the eye at the end of the surgery. It is not designed to remain in the eye long-term. Your surgeon will ensure its complete removal.
As with any surgical procedure, your ophthalmologist will discuss all potential risks and benefits with you before the surgery. Always follow your doctor’s post-operative instructions carefully to ensure the best possible recovery and outcome.
Understanding Retinal Detachment and Giant Retinal Tears
The retina is a vital part of your eye, much like the film in a camera. It’s a thin layer of tissue at the back of your eye that contains millions of light-sensitive cells. These cells detect light and send signals to your brain through the optic nerve, allowing you to see. When the retina detaches, it means it has pulled away from its normal position at the back of the eye. This is a serious condition because the detached retina cannot function properly, leading to blurred vision, flashes of light, floaters (small specks or cobwebs that drift across your vision), or a shadow or curtain-like effect in your field of vision. If left untreated, retinal detachment can lead to permanent vision loss.
Giant retinal tears are a more severe form of retinal tear, involving a large portion of the retina. These also require urgent surgical intervention to prevent complete retinal detachment and preserve vision. Both retinal detachment and giant retinal tears are medical emergencies that require prompt attention from an eye specialist. Early diagnosis and treatment are crucial for a better outcome.
General Advice for Eye Medicine Use and Care
While Perfluoro-n-octane is used during surgery and not for self-administration, it’s important to understand general principles of eye care, especially when you might be using other eye drops or ointments as part of your post-operative recovery. Always wash your hands thoroughly with soap and water before touching your eyes or handling any eye medication. This helps prevent infections. When applying eye drops, tilt your head back, pull down your lower eyelid to form a small pocket, and gently squeeze the prescribed number of drops into the pocket. Try not to touch your eye with the tip of the dropper. Close your eye gently for a minute or two to allow the medicine to absorb. For eye ointments, apply a small ribbon along the inside of your lower eyelid. Always follow your doctor’s specific instructions for any post-operative medications you are given, including the correct dosage and frequency.
Proper storage of eye medicines is also important. Always keep them in a cool, dry place, away from direct sunlight and out of reach of children. Check the expiry date and discard any expired medications. Never share your eye medicines with others, as what works for one person may not be suitable or safe for another. Maintain good personal hygiene, especially around your eyes, to prevent infections. Avoid rubbing your eyes, especially after surgery, as this can cause irritation or complications.
When to Seek Medical Help
After any eye surgery, it is vital to be vigilant about your recovery and know when to seek immediate medical attention. Your ophthalmologist will provide you with specific instructions on what to expect and what symptoms warrant concern. Generally, you should contact your doctor immediately if you experience any of the following:
- Sudden decrease in vision or new vision changes.
- Severe eye pain that is not relieved by prescribed pain medication.
- Increased redness or swelling around the eye.
- New or worsening discharge from the eye.
- Flashes of light or new floaters in your vision.
- A sensation of a ‘curtain’ or ‘shadow’ coming across your vision.
- Any signs of infection, such as fever or chills.
These symptoms could indicate a complication that requires prompt evaluation and treatment. Never hesitate to contact Pristine Eye Hospitals or your treating ophthalmologist if you have any concerns about your eye health or recovery. Regular follow-up appointments are crucial to monitor your healing and ensure the best possible long-term outcome for your vision.
Frequently asked questions
What is Perfluoro-n-octane used for?
Perfluoro-n-octane is used during eye surgery to help flatten the retina, especially in cases of retinal detachment or giant retinal tears. It assists the surgeon in repositioning the retina.
How does Perfluoro-n-octane work?
It works as a heavy, clear liquid that is temporarily placed inside the eye during surgery. This heavy liquid gently presses the detached or torn retina back into its flat, proper position, allowing the surgeon to repair it.
What are the common Indian brands of Perfluoro-n-octane?
Common brands include Perfluoron and similar products available in India.
How is Perfluoro-n-octane administered or used?
It is administered directly into the eye by a qualified ophthalmologist during surgery. It is an intraocular (intra-operative) medicine and is always removed from the eye at the end of the procedure.
Do I need a prescription for Perfluoro-n-octane?
Yes, Perfluoro-n-octane is a prescription medicine and is only used by specialists in a hospital or clinic setting. It is never for self-use.
What are the key precautions to be aware of with Perfluoro-n-octane?
The most important precaution is that Perfluoro-n-octane is not left in the eye. It is a surgical aid that must be completely removed by the surgeon before the operation concludes.
References
- 1-(Perfluorohexyl)octane: A Multifaceted Agent for Dry Eye Disease and Retinal Surgery
- Eye health – MedlinePlus (US National Library of Medicine)
- Eye health information – American Academy of Ophthalmology
- Learn about eye health – National Eye Institute (NIH)
- Blindness and vision impairment – World Health Organization
Medically reviewed by Dr. C Jagadesh Reddy, Chief Surgeon: Cornea, Cataract and Refractive Surgery — last reviewed 2026-07-28.
This page is for general education only and is not a substitute for professional medical advice, diagnosis or treatment. Never self-medicate or reuse an old prescription. Always consult a qualified ophthalmologist before starting, changing or stopping any eye medicine.