Intravitreal Eye Injections Princeton, Monroe Township, & Somerset, NJ

Name: Eye Injections
Brand: Princeton Eye Group
Rating: 3.91 (295 reviews)

Intravitreal injections are one of the most important advances in modern ophthalmology, offering a precise, proven way to deliver vision-saving medication directly where it is needed most.

Protecting Your Vision From the Inside Out

When retinal conditions such as wet macular degeneration, diabetic macular edema, or retinal vein occlusion threaten your sight, the stakes could not be higher. These conditions can progress rapidly, and the window for effective treatment is often narrow. Intravitreal injections allow our physicians to deliver powerful, targeted medication directly into the eye, stabilizing or improving vision in patients who might otherwise face significant permanent vision loss. At Princeton Eye Group, intravitreal injections are performed by fellowship-trained retinal specialists with the precision and care that comes from years of advanced training and thousands of successful procedures.

What Are Intravitreal Injections?

An intravitreal injection is a minimally invasive procedure in which medication is delivered directly into the vitreous, the clear, gel-like substance that fills the interior of the eye. By introducing medication at the site of disease rather than through the bloodstream, intravitreal injections achieve far higher concentrations of therapeutic agents at the retina than would be possible with oral or topical treatments. The most commonly used medications are anti-VEGF (vascular endothelial growth factor) agents, which work by inhibiting the growth of abnormal blood vessels and reducing inflammation and fluid leakage in the retina. Steroid medications may also be used in select cases.

The Benefits of Intravitreal Injections

Targeted, High-Concentration Delivery: Medication is delivered directly to the affected tissue, achieving therapeutic concentrations at the retina that cannot be reached through systemic or topical treatments.
Clinically Proven Vision Preservation: Large-scale national and international clinical trials have confirmed that anti-VEGF injections stabilize vision in the vast majority of treated patients, with many experiencing meaningful improvement.
Effective Across Multiple Conditions: Intravitreal injections are indicated for a wide range of serious retinal conditions, including wet AMD, diabetic macular edema, retinal vein occlusion, and others, making them one of the most versatile tools in retinal care.
Minimally Invasive and Well-Tolerated: The procedure is performed in-office under topical anesthesia and typically takes only a few minutes, with most patients experiencing little to no discomfort.
Rapid Therapeutic Effect: Many patients notice stabilization or improvement in their vision within weeks of beginning treatment, with continued progress over the course of their injection series.
Reduces Risk of Severe Vision Loss: When initiated promptly and maintained appropriately, intravitreal injections significantly reduce the risk of the catastrophic vision loss that advanced retinal disease can cause without treatment.

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Is an Intravitreal Injection Right for Me?

Intravitreal injections are recommended for patients diagnosed with conditions involving abnormal blood vessel growth, fluid leakage, or inflammation in the retina. The most common indications include wet age-related macular degeneration, diabetic macular edema, and retinal vein occlusion. In some cases, injections may also be used to treat other retinal vascular conditions or as an adjunct to laser therapy or surgery.

Your Princeton Eye Group physician will perform a thorough retinal evaluation, including advanced imaging, to determine whether intravitreal injections are appropriate for your condition, which medication is best suited to your needs, and how frequently treatment should be administered.

The Intravitreal Injection Process What to Expect

Comprehensive Retinal Evaluation

Your physician will perform a detailed examination of the retina using advanced imaging technology, including optical coherence tomography (OCT), to assess the extent of disease and confirm the appropriate treatment plan.

Personalized Treatment Plan

Based on your diagnosis and imaging findings, your physician will determine the most appropriate medication, starting dose, and injection schedule for your individual condition.

Preparation

On the day of your injection, the eye is thoroughly cleaned with an antiseptic solution and numbed with topical anesthetic eye drops to ensure a comfortable, sterile procedure.

The Injection

Using a very fine needle, your physician carefully delivers the medication into the vitreous cavity of the eye. The procedure takes only a few minutes and is generally well tolerated, with most patients reporting minimal discomfort.

Post-Procedure Monitoring

Following the injection, your eye will be briefly examined before you are discharged. You may notice some mild floaters or temporary visual changes immediately after the procedure, which typically resolve quickly.

Ongoing Treatment and Follow-Up

Most retinal conditions require a series of injections administered on a regular schedule. Your physician will monitor your response through periodic imaging and adjust your treatment plan as needed over time.

Your Intravitreal Injection Results and Recovery

Intravitreal injections require no meaningful downtime. Most patients resume normal daily activities the same day, with the exception of swimming or submerging the eye in water for a short period following the procedure. Mild redness, a scratchy sensation, or the appearance of small floaters are common in the hours following an injection and typically resolve on their own.

Vision stabilization is often observed within the first one to two treatment cycles, with many patients experiencing measurable improvement over the course of their treatment series. Because retinal conditions such as wet AMD and diabetic macular edema are chronic, ongoing treatment is often necessary to maintain results. Your physician will work with you to find the most effective and manageable long-term injection schedule for your specific condition.

Why Choose Princeton Eye Group for Intravitreal Injections?

At Princeton Eye Group, intravitreal injections are performed by fellowship-trained specialists with the clinical depth and diagnostic precision to manage even the most complex retinal cases in New Jersey.

Fellowship-Trained Retinal Expertise

Intravitreal injections at Princeton Eye Group are administered by Dr. Samuel M. Liu, Director of Retina and Imaging Services, a board-certified retinal specialist who has been named one of America's Top Doctors since 2004 and serves as Section Chief of Ophthalmology at Penn Medicine Princeton Medical Center.

Advanced Retinal Imaging

Every injection at Princeton Eye Group is guided by state-of-the-art retinal imaging, including optical coherence tomography (OCT), ensuring that each treatment decision is based on the most precise, up-to-date picture of your retinal health.

A Full Formulary of Proven Medications

Our physicians have extensive experience with the full range of FDA-approved anti-VEGF agents used in retinal care, including Avastin, Lucentis, Eylea, and Triesence. They will select the medication best suited to your diagnosis and clinical profile.

Physician-Owned, Clinically Driven Care

As a privately owned, physician-led practice, every treatment decision at Princeton Eye Group is made by doctors with one priority: your long-term vision. There are no corporate quotas or volume-driven incentives, only the clinical judgment of experienced specialists who put patients first.

Convenient Access Across Central New Jersey

With offices in Princeton, Monroe Township, and Somerset, Princeton Eye Group makes it easy for retinal patients throughout the region to access the consistent, ongoing care that conditions like wet AMD and diabetic macular edema require.

Intravitreal Injections Frequently Asked Questions

Are intravitreal injections painful?

Most patients are surprised by how comfortable the procedure is. Topical anesthetic drops are applied beforehand, and the injection itself typically causes little to no pain. Some patients report a mild pressure sensation, and occasional, brief discomfort is possible, but significant pain is uncommon.

How often will I need injections?

Injection frequency varies depending on your diagnosis, the medication used, and your individual response to treatment. Many patients begin with monthly injections and transition to a less frequent schedule as their condition stabilizes. Your physician will tailor your treatment schedule based on your imaging results and clinical progress.

How long does the procedure take?

The injection itself takes only a few minutes. When accounting for preparation, the antiseptic cleaning process, and a brief post-procedure check, most patients are in and out of the office within 30 to 45 minutes.

Is there anything I should avoid after an injection?

We recommend avoiding swimming, hot tubs, and submerging the eye in water for a short period following the procedure. Most normal daily activities, including driving, can be resumed the same day. Your physician will provide specific post-procedure instructions at the time of your visit.

What medications are used for intravitreal injections?

The most commonly used medications are anti-VEGF agents, including Avastin (bevacizumab), Lucentis (ranibizumab), and Eylea (aflibercept). Steroid medications such as Triesence may also be used in select cases. Your physician will recommend the most appropriate medication based on your diagnosis and clinical needs.

Can intravitreal injections restore lost vision?

While the primary goal of intravitreal injections is to stabilize vision and prevent further loss, many patients do experience meaningful improvement in visual acuity over the course of treatment. The likelihood of improvement depends on the specific condition being treated, its severity, and how promptly treatment is initiated.

Does insurance cover intravitreal injections?

Intravitreal injections for medically indicated conditions such as wet AMD, diabetic macular edema, and retinal vein occlusion are generally covered by Medicare and most medical insurance plans. Our billing team can help verify your coverage and answer any questions about costs prior to your first treatment.

What are the risks of intravitreal injections?

Intravitreal injections are generally very safe when performed by an experienced physician in a sterile setting. As with any intraocular procedure, there is a small risk of infection (endophthalmitis), bleeding, retinal detachment, or increased eye pressure. Your physician will review the risks and benefits of treatment with you in detail prior to your procedure.