Understanding Epiretinal Membrane (ERM)

An epiretinal membrane is a thin layer of scar tissue that forms on the surface of the retina. While it may cause vision changes, treatments are available to improve clarity and reduce distortion.

What Is an Epiretinal Membrane?

An epiretinal membrane (ERM), sometimes called a “macular pucker,” is a thin sheet of fibrous tissue that grows across the surface of the macula — the central part of the retina responsible for detailed vision.

The membrane can contract and distort the macula, leading to blurred or wavy vision. ERMs are most often age-related but can also develop after retinal tears, detachments, or eye surgery.

Symptoms

Some patients may have an ERM without symptoms, discovered only during an eye exam.

Symptoms may vary from mild to more noticeable and can include:

01. Blurred or hazy central vision

02. Straight lines appearing wavy or distorted

03. Difficulty reading fine print or seeing details

04. A gray or cloudy area in the central vision

05. Double vision (less common)

Risk Factors

Risk factors for epiretinal membranes include:

Diagnosis & Testing

Eye specialists diagnose ERM through:

Dilated Eye Exam:

Provides a direct view of the retina’s condition.

Allows the retina to be examined directly.

Optical Coherence Tomography (OCT):

High-resolution scans for detailed macular analysis.

High-resolution imaging that shows the thickness and distortion of the macula.

Visual Acuity Tests:

Checks how clearly you can see in the center of vision.

Assess how well central vision is functioning.

Treatment Options

Treatment depends on severity and symptoms:

Observation:

If symptoms are mild, regular monitoring may be recommended.

Eyeglasses or Low-Vision Aids:

Can help maximize remaining vision.

Vitrectomy Surgery with Membrane Peel:

The most effective treatment for significant vision distortion, where the scar tissue is carefully removed to improve clarity.

Living with an Epiretinal Membrane

Patients with ERM may live with mild distortion for years without needing surgery. Helpful steps include:

Regular follow-up eye exams to monitor changes.

Using magnifiers or digital tools to support reading.

Protecting overall eye health by managing conditions like diabetes or hypertension.

At Retina Consultants of Hawaii, our specialists provide both monitoring and advanced treatment options
to help patients with ERM protect and improve their vision.

Next Steps in Your Care

If you are experiencing blurred or distorted central vision, or have been diagnosed with an epiretinal membrane, speak with your current eye care provider. If specialized care is needed, they can coordinate a referral to our team.

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