Conbercept (Intravitreal Injection)

Conbercept is a medicine used to treat certain serious eye conditions like Wet Age-related Macular Degeneration (Wet AMD) and Diabetic Macular Edema (DME) by injection into the eye.

Drug class VEGF Inhibitor
Type Single
Forms Intravitreal Injection
Common strength 0.5 mg
Common Indian brands Lumitin (China, not in India)
Prescription status Prescription (hospital use)

What Conbercept is used for

Conbercept is an important medicine in the field of ophthalmology, specifically for conditions affecting the retina. It is used to treat:

  • Wet Age-related Macular Degeneration (Wet AMD): This is a common eye condition that affects the macula, the central part of your retina responsible for sharp, detailed vision. In Wet AMD, abnormal blood vessels grow under the macula and leak fluid or blood, causing blurred vision and potentially severe vision loss.
  • Diabetic Macular Edema (DME): This condition affects people with diabetes. High blood sugar levels can damage blood vessels in the retina, leading to fluid leakage into the macula. This swelling can cause blurred or distorted vision.

It is important to note that while Conbercept is used for these conditions, its availability and approval vary by region. In India, your ophthalmologist will discuss the most suitable and approved treatment options for your specific condition.

How it works

Conbercept belongs to a category of medicines called VEGF inhibitors. VEGF stands for Vascular Endothelial Growth Factor. This is a natural protein in your body that, in certain eye conditions, can cause abnormal blood vessels to grow and leak fluid. This leakage is what leads to vision problems in conditions like Wet AMD and DME.

Conbercept works as a ‘VEGF-trap fusion protein’. This means it is designed to bind to and block the activity of VEGF. By trapping VEGF, Conbercept helps to stop the growth of these abnormal blood vessels and reduce the leakage of fluid. This action helps to preserve vision and, in some cases, improve it.

Because it targets the root cause of the abnormal vessel growth and leakage, Conbercept is a highly effective treatment for these serious retinal conditions. It helps to stabilize the condition and prevent further vision loss caused by these processes.

How it’s used

Conbercept is administered as an intravitreal injection, which means it is injected directly into the vitreous gel inside your eye. This procedure is always performed by a retina specialist in a hospital or clinic setting under sterile conditions.

The typical dosing pattern for Conbercept involves an initial ‘loading phase’ where injections are given monthly. After this initial phase, your doctor will assess your response and may then extend the intervals between injections, tailoring the treatment plan to your specific needs and how your eye responds to the medicine. This extended dosing helps maintain the therapeutic effect while potentially reducing the frequency of hospital visits.

It is crucial to understand that this is a specialized procedure. You will not be administering this medicine yourself. Your retina specialist will guide you through the entire process, explain what to expect during and after the injection, and schedule your follow-up appointments.

Always follow your ophthalmologist’s exact instructions.

Brands available in India

  • Lumitin (China
  • not in India)

Brand availability and pricing vary; confirm with your pharmacist.

Please note

Given as an injection inside the eye by a retina specialist. After any intravitreal injection, seek help IMMEDIATELY if you develop increasing pain, redness, sensitivity to light or a drop in vision — these can be signs of a serious infection (endophthalmitis). Not currently approved or routinely available in India — included for reference; ask your ophthalmologist about approved alternatives.

Precautions & side effects

Conbercept is a powerful medicine given as an injection inside the eye by a retina specialist. Due to the nature of this administration, there are specific precautions and warnings you must be aware of:

  • Not Marketed in India: Currently, Conbercept is not approved or routinely available in India. It is included here for reference. Your ophthalmologist will discuss approved and available alternatives that are suitable for your condition.
  • Immediate Medical Attention Required: After any intravitreal injection, it is critically important to seek help IMMEDIATELY if you develop any of the following symptoms:
    • Increasing pain in the eye
    • Increased redness of the eye
    • Increased sensitivity to light
    • A sudden or significant drop in vision

    These symptoms can be signs of a serious infection inside the eye, known as endophthalmitis, which requires urgent medical intervention to prevent severe vision loss.

  • Prescription and Hospital Use: Conbercept is a prescription-only medicine and is administered only in a hospital setting by a qualified retina specialist. It is not available for self-administration.
  • High Warning Level: The administration of Conbercept carries a high warning level due to the potential for serious complications, though these are rare. Your doctor will discuss all potential risks and benefits with you before treatment.

Always follow your doctor’s instructions carefully and attend all scheduled follow-up appointments. If you have any concerns or experience any unusual symptoms after an injection, contact your ophthalmologist immediately.

Understanding Your Eye Condition: Wet AMD and DME

When you are diagnosed with a retinal condition like Wet Age-related Macular Degeneration (Wet AMD) or Diabetic Macular Edema (DME), it can be a worrying time. These conditions affect the macula, a small but vital part of your retina responsible for your central, sharp vision – the vision you use for reading, recognising faces, and seeing fine details. In Wet AMD, abnormal, fragile blood vessels grow under the macula and leak fluid or blood, leading to blurred vision and distortion. Similarly, in DME, high blood sugar levels from diabetes damage blood vessels in the retina, causing fluid to leak into the macula and leading to swelling and blurred vision. Both conditions can significantly impact your quality of life if left untreated. Medicines like Conbercept are designed to target the underlying processes that cause these leaks and abnormal vessel growth, helping to preserve your precious eyesight.

It’s important to remember that early diagnosis and consistent treatment are key to managing these conditions effectively. Your ophthalmologist is your best resource for understanding your specific condition, the treatment options available, and what you can do to protect your vision. Don’t hesitate to ask questions and express any concerns you may have.

General Advice for Eye Care and Seeking Help

While Conbercept is administered by a specialist, general eye care practices are always important, especially when managing a chronic eye condition. Always maintain good hand hygiene, especially if you need to touch your eyes for any reason. Avoid rubbing your eyes vigorously, as this can cause irritation or damage. If you are using other eye drops or ointments, make sure to follow the instructions for their use carefully. Store all medicines, including eye drops, as advised by your pharmacist – typically in a cool, dry place away from direct sunlight and out of reach of children. Never use expired medicines.

After any eye procedure, especially an injection, it is normal to experience some mild discomfort or irritation. However, it is crucial to know when to seek immediate medical help. If you experience increasing pain, significant redness, increased sensitivity to light, or a noticeable drop in your vision after an eye injection, do not wait. These could be signs of a serious infection (endophthalmitis) or other complications that require urgent attention from your ophthalmologist or the nearest eye hospital. Prompt action can make a significant difference in the outcome. Always keep your ophthalmologist’s contact information handy and do not hesitate to call them if you have any concerns about your eye health.

Living with Retinal Conditions: A Patient’s Guide

Living with a retinal condition requires ongoing management and a partnership with your eye care team. Regular follow-up appointments are essential to monitor your condition and the effectiveness of your treatment. Even if your vision seems stable, your doctor needs to check for any changes that might not be immediately obvious to you. Adhering to your treatment schedule, including injections, is vital for the best possible outcome. Missing appointments or delaying treatment can lead to a worsening of your condition and potential irreversible vision loss.

Beyond medical treatment, maintaining a healthy lifestyle can support your overall eye health. This includes a balanced diet rich in fruits, vegetables, and omega-3 fatty acids, regular exercise, and avoiding smoking, which is a significant risk factor for many eye diseases. If you have diabetes, strict control of your blood sugar levels, blood pressure, and cholesterol is paramount to prevent the progression of diabetic eye disease. Remember, you are not alone in this journey. Many resources and support groups are available to help you understand and cope with your condition. Open communication with your doctor and proactive self-care are your strongest allies in preserving your vision and maintaining your quality of life.

Frequently asked questions

What is Conbercept used for?

Conbercept is used to treat serious eye conditions such as Wet Age-related Macular Degeneration (Wet AMD) and Diabetic Macular Edema (DME).

How does Conbercept work?

Conbercept works by blocking a protein called VEGF (Vascular Endothelial Growth Factor). By trapping VEGF, it helps to stop the growth of abnormal blood vessels and reduce fluid leakage in the eye, which are causes of vision loss in Wet AMD and DME.

What are the common brands of Conbercept available in India?

Conbercept is not currently approved or routinely available in India. It is marketed as Lumitin in China, but not in India. Your ophthalmologist will discuss approved alternatives available in India.

How is Conbercept administered?

Conbercept is given as an intravitreal injection, which means it is injected directly into the eye by a retina specialist in a hospital or clinic setting. It is not a medicine you administer yourself.

Is a prescription needed for Conbercept?

Yes, Conbercept is a prescription-only medicine and is administered only by a retina specialist in a hospital setting.

What precautions should I take after receiving Conbercept?

After any intravitreal injection, you must seek help IMMEDIATELY if you develop increasing pain, redness, sensitivity to light, or a drop in vision. These can be signs of a serious infection (endophthalmitis). Also, remember Conbercept is not currently approved or routinely available in India; ask your ophthalmologist about approved alternatives.

References

  1. Profile of conbercept in the treatment of neovascular age-related macular degeneration
  2. Diabetic Retinopathy – National Eye Institute
  3. Eye health – MedlinePlus (US National Library of Medicine)
  4. Eye health information – American Academy of Ophthalmology
  5. Blindness and vision impairment – World Health Organization

Medically reviewed by , 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.

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