How Long Does Blurry Vision Last After Eylea Injection?

Steven Cohen
Nov 28
3 min read

Eylea injections have become a leading treatment for several retinal conditions, including age-related macular degeneration and diabetic macular edema. Many patients ask how long it will take to recover and what side effects are associated with the injection. The most common question seems to be about blurry vision right after the injection. Many also ask how fast does eylea work, because understanding the onset might give a better insight into managing expectations and thereby enhancing patient compliance.

In this blog, we will describe the causes of post-injection blurry vision, how long it may last, and give some tips on its effective management.

Why Blurry Vision Happens after Injection of Eylea?

Blurred vision, subsequent to an Eylea injection, is usually a normal reaction. Common causes may include the following:

Temporary changes in the eye's internal pressure due to the injection itself.
Small particles stirred up during the procedure or vitreous floaters.
Minor swelling of the retina can occur when the medication starts working.
Irritation or dryness of the eye from the procedure or the antiseptic drops used before the injection.

Most blurred vision cases are temporary and improve as the eye adjusts.

How Long the Blurred Vision Lasts?

The blurry vision can last longer or shorter depending on individual conditions, such as the seriousness of the retinal condition, age, and overall eye health.

Immediate effects: Blurred vision may appear right after the injection and may continue for a few hours.
Short term effects: Some patients describe residual mild blurriness for 1–3 days.
Extended effects: In rare cases, blurred vision can last for one week or even longer, especially if there is slight inflammation or increased intraocular pressure of the eye.

It should also be noted that one must immediately consult an ophthalmologist in cases of significant, sudden, or worsening vision changes.

Factors Affecting Recovery

Several factors may influence the duration of blurred vision, including:

Pre existing eye conditions: Recovery may take longer among patients with macular degeneration, diabetic retinopathy, or glaucoma.
Injection technique and anatomy of the eye: Some eyes are more sensitive to fluid injections that may affect temporary clarity of vision.
Post injection care: Resting, avoiding strenuous activity, and using prescribed eye drops as instructed by your doctor can hasten recovery.
Frequency of injections: The repeated injections can cause mild cumulative effects on clarity of vision; these, however, are usually manageable.

Tips to Handle Blurry Vision

While blurry vision is often temporary, you can take steps to reduce discomfort:

Avoid driving or operating any machinery immediately after the injection.
If dryness or irritation occurs, use lubricating eye drops.
Keep your eyes rested and avoid the screen for the first day.
Watch for sudden flashes, severe pain, or significant vision loss, and report such symptoms immediately.
Return for all follow-up appointments to check that your eye is healing properly.

When to Seek Immediate Medical Attention?

Although post-Eylea blurred vision is often transient and mild, some symptoms necessitate urgent evaluation:

Severe, persistent eye pain
Sudden loss of vision
Increasing redness or swelling around the eye
Flashes of light or a new onset of floaters

Prompt attention can prevent complications and ensure that the treatment remains safe and effective.

Wrapping Up

Blurred vision, in most cases, will resolve anywhere from a few hours to several days after an Eylea injection. Recovery depends on various individual factors that include predisposed eye conditions, injection technique, and post-care. Understanding what to expect helps patients manage their daily activities and maintain peace of mind. By following your ophthalmologist's instructions and based on symptoms, most patients progress with time in view and experience smooth recovery. You must seek professional advice immediately if you realize that something or severe changes are occurring, to catch any potentially troublesome issues early.