Hyaluronidase is an enzyme injection used in ophthalmology to help local anaesthetics spread better during eye procedures and to dissolve complications from hyaluronic acid fillers.
| Drug class | Enzyme |
|---|---|
| Type | Single |
| Forms | Injection (added to anaesthetic) |
| Common strength | 1500 IU |
| Common Indian brands | Hynidase |
| Prescription status | Prescription (hospital use) |
What Hyaluronidase is used for
Hyaluronidase is a special medicine used in eye care, particularly in procedures related to oculoplasty. It helps specialists manage certain situations effectively. Here are its main uses:
- Improving the spread of local anaesthetic in orbital blocks: When you need an eye procedure, a local anaesthetic is often injected around the eye to numb the area. Hyaluronidase is added to this anaesthetic to help it spread more evenly and quickly through the tissues. This ensures better numbing and a more comfortable experience during the procedure.
- Dissolving complications from HA (hyaluronic acid) fillers: Hyaluronic acid fillers are sometimes used for cosmetic purposes around the eyes. If there are any unwanted side effects or complications, such as lumps, unevenness, or even more serious issues, Hyaluronidase can be injected to break down and dissolve the filler, helping to resolve these problems.
It is also important to note that Hyaluronidase acts as an antidote for hyaluronic-acid filler vascular occlusion, which is a serious complication where the filler accidentally blocks a blood vessel. In such critical situations, Hyaluronidase can be used to quickly dissolve the filler and restore blood flow.
At Pristine Eye Hospitals, our specialists use Hyaluronidase with precision and care to ensure the best possible outcomes for our patients, whether it’s for enhancing anaesthesia or managing filler-related concerns.
How it works
Hyaluronidase is an enzyme, which means it’s a natural substance that helps specific chemical reactions happen in the body. Its main job is to break down a substance called hyaluronic acid (HA).
Hyaluronic acid is a natural component found in many tissues throughout our body, including around the eyes. It acts like a gel, giving structure and lubrication to tissues. When Hyaluronidase is injected, it temporarily breaks down this hyaluronic acid in the local area. This breakdown makes the tissues less dense and more permeable.
- For local anaesthetics: When Hyaluronidase is mixed with a local anaesthetic and injected, by breaking down the tissue’s hyaluronic acid, it allows the anaesthetic solution to spread much more easily and widely through the tissues. This means the anaesthetic can reach more nerves and numb a larger area more effectively and quickly, leading to better pain control during eye procedures.
- For dissolving HA fillers: Hyaluronic acid fillers are essentially concentrated gels of hyaluronic acid. If a filler needs to be removed or adjusted due to complications, injecting Hyaluronidase directly into the filler area causes it to break down the hyaluronic acid in the filler. This effectively dissolves the filler, allowing the body to absorb it naturally and resolving the complication.
In essence, Hyaluronidase acts like a ’tissue softener’ for a short period, allowing other substances to move through the tissue more freely or breaking down unwanted hyaluronic acid deposits.
How it’s used
Hyaluronidase is not a medicine you would use at home. It is a specialized injection administered only by qualified ophthalmologists or trained medical professionals in a hospital or clinic setting.
- When used with anaesthetic: The ophthalmologist will carefully mix the appropriate strength of Hyaluronidase (1500 IU) with the local anaesthetic solution. This combined solution is then injected around the eye area (an ‘orbital block’) to numb it before a surgical procedure. The exact amount and location of the injection will be determined by your doctor based on the specific procedure you are undergoing.
- When used to reverse fillers: If you have complications from hyaluronic acid fillers, your ophthalmologist will inject Hyaluronidase directly into the area where the filler needs to be dissolved. The dose and number of injections will depend on the amount of filler to be dissolved and the nature of the complication.
You will always be under the care and supervision of medical staff when Hyaluronidase is administered. Your doctor will explain the procedure to you and ensure your comfort and safety.
Always follow your ophthalmologist’s exact instructions.
Brands available in India
- Hynidase
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
Hyaluronidase is a powerful enzyme and its use requires careful consideration by a specialist. While generally safe when administered by trained professionals, there are important points to remember:
- Prescription Medicine: Hyaluronidase is a prescription medicine and is strictly for hospital use. It must only be used as directed by a qualified ophthalmologist. This medicine is never for self-use.
- Specialist Administration: This injection is given only by specialists in a hospital or clinic setting. Do not attempt to self-medicate or reuse an old prescription.
- Allergies: Inform your doctor if you have any known allergies, especially to any medications or bee stings, as some individuals may have sensitivities.
- Medical History: Always provide your complete medical history to your ophthalmologist, including any existing medical conditions or other medications you are taking.
- Antidote for Vascular Occlusion: It is important to note that Hyaluronidase is also the antidote for hyaluronic-acid filler vascular occlusion, a serious complication. This highlights its potent action and the need for expert administration.
- General Warning: This page is for general education and is not a substitute for professional medical advice, diagnosis, or a prescription. Always consult your ophthalmologist for any concerns or before making any decisions about your treatment.
Your ophthalmologist at Pristine Eye Hospitals will thoroughly assess your condition and discuss all necessary precautions before administering Hyaluronidase, ensuring your safety and optimal treatment outcomes.
Understanding Local Anaesthesia for Eye Procedures
Many eye procedures, especially those related to oculoplasty (surgery around the eyes), require the area to be numb so you don’t feel any pain. This is usually achieved with a ‘local anaesthetic’. Unlike general anaesthesia, where you are completely asleep, local anaesthesia means only the specific area being treated is numbed, and you remain awake and aware. This approach is often preferred because it carries fewer risks than general anaesthesia and allows for a quicker recovery.
When a local anaesthetic is injected around the eye, it temporarily blocks the nerve signals that carry pain messages to your brain. This makes the area insensitive to pain during the procedure. The goal is to ensure you are comfortable and relaxed throughout. Sometimes, to make the anaesthetic work even better and spread more effectively, a special medicine like Hyaluronidase is added. This helps the numbing medicine reach all the necessary areas quickly and evenly, ensuring a more thorough and reliable anaesthetic effect. Your doctor will always explain the type of anaesthesia being used and what you can expect before your procedure.
Managing Hyaluronic Acid Filler Complications
Hyaluronic acid (HA) fillers are popular for cosmetic enhancements, often used to reduce wrinkles or add volume around the eyes and face. While generally safe, sometimes complications can arise. These might include:
- Lumps or unevenness: The filler might settle unevenly, creating visible bumps or an irregular surface.
- Overcorrection: Too much filler might be injected, leading to an unnatural or exaggerated appearance.
- Allergic reactions: Though rare, some individuals might have a reaction to the filler material.
- Vascular occlusion: This is a serious but rare complication where the filler accidentally blocks a blood vessel. This can lead to severe consequences if not treated promptly.
If any of these complications occur, it’s crucial to seek immediate medical attention from an ophthalmologist or a specialist experienced in filler management. This is where Hyaluronidase plays a vital role. It acts as a targeted ‘antidote’ by breaking down the hyaluronic acid in the filler, allowing the body to absorb it. This can quickly resolve issues like lumps, unevenness, or, most critically, restore blood flow in cases of vascular occlusion, preventing permanent damage. Always ensure any filler procedures are performed by qualified and experienced practitioners who can manage potential complications.
General Advice for Eye Medicine and Care
While Hyaluronidase is an injection given by specialists, it’s important to understand general principles of eye care and medication, especially if you are using other eye drops or ointments at home:
- Always follow your doctor’s instructions: Whether it’s for an injection or eye drops, always use medicines exactly as prescribed by your ophthalmologist. Do not change the dose or stop treatment without consulting them.
- Hygiene is key: If you are using eye drops or ointments at home, always wash your hands thoroughly with soap and water before touching your eyes or the medicine bottle. Avoid touching the tip of the dropper or tube to your eye or any other surface to prevent contamination.
- Proper storage: Store all eye medicines as directed on the label or by your pharmacist. Some may need to be kept in a cool, dark place, while others might require refrigeration. Keep medicines out of reach of children.
- When to seek help: If you experience any new or worsening symptoms in your eyes, such as pain, redness, blurred vision, discharge, or any unusual reactions after a procedure or using eye medicine, contact Pristine Eye Hospitals or your ophthalmologist immediately. Do not wait for symptoms to worsen. Early intervention can prevent more serious problems.
- Regular check-ups: Regular eye check-ups are essential for maintaining good eye health, especially if you have an underlying eye condition or are undergoing treatment. Your ophthalmologist can monitor your progress and adjust your treatment plan as needed.
At Pristine Eye Hospitals, your eye health is our priority. We are committed to providing you with the best care and ensuring you understand your treatment every step of the way.
Frequently asked questions
What is Hyaluronidase used for?
Hyaluronidase is used in ophthalmology to help local anaesthetics spread better during eye procedures, ensuring more effective numbing. It is also used to dissolve complications from hyaluronic acid (HA) fillers, such as lumps or unevenness, and critically, to reverse hyaluronic-acid filler vascular occlusion.
How does Hyaluronidase work?
Hyaluronidase is an enzyme that works by breaking down hyaluronic acid, a natural substance found in body tissues. When injected, it temporarily makes tissues less dense, allowing anaesthetics to spread more easily. For HA fillers, it directly breaks down the filler material, causing it to dissolve.
What are the common Indian brands of Hyaluronidase?
In India, one common brand for Hyaluronidase is Hynidase.
How is Hyaluronidase administered?
Hyaluronidase is administered as an injection. It is either added to a local anaesthetic solution for orbital blocks during eye procedures or injected directly into an area to dissolve hyaluronic acid filler complications. It is always given by qualified specialists in a hospital or clinic setting.
Do I need a prescription for Hyaluronidase?
Yes, Hyaluronidase is a prescription medicine and is strictly for hospital use. It is never for self-use and must only be administered by a qualified ophthalmologist or trained medical professional.
What precautions should be taken with Hyaluronidase?
Hyaluronidase is a prescription medicine for hospital use only, administered by specialists. Inform your doctor about any allergies or your full medical history. It is also the antidote for hyaluronic-acid filler vascular occlusion, highlighting its potent action and the need for expert administration. This page is for general education and not a substitute for professional medical advice.
References
- Hyaluronidase – StatPearls – NCBI Bookshelf – NIH
- Hyaluronidase Use in Aesthetic Medicine: Formulations, Safety, and Clinical Practice – PMC
- Eye health – MedlinePlus (US National Library of Medicine)
- Eye health information – American Academy of Ophthalmology
- Learn about eye health – National Eye Institute (NIH)
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.