Epiretinal Membrane

Epiretinal Membrane

epiretinalmebranA macular pucker (also called an epiretinal membrane) that grows on the surface of the retina, particularly the macula, which is the part of your eye responsible for detailed, central vision.

The macula is the small area at the center of the eye’s retina that allows you to see fine details clearly. The retina is a layer of light-sensing cells lining the back of your eye. As light rays enter your eye, the retina converts the rays into signals, which are sent through the optic nerve to your brain where they are recognized as images. Damage to your macula causes blurred central vision, making it difficult to perform tasks such as reading small print or threading a needle.

As we grow older, the thick vitreous gel in the middle of our eyes begins to shrink and pull away from the macula. As the vitreous pulls away, scar tissue may develop on the macula. Sometimes the scar tissue can warp and contract, causing the retina to wrinkle or become swollen or distorted. 


As you age, the vitreous — the clear, gel-like substance that fills the middle of your eye — begins to shrink and pull away from the retina. As the vitreous pulls away, scar tissue may develop on the macula. Sometimes the scar tissue can warp and contract, causing the retina to wrinkle or bulge.

Other eye conditions associated with macular pucker include:

  • Vitreous detachment;
  • Torn or detached retina;
  • Inflammation (swelling) inside the eye;
  • Severe trauma to the eye (from surgery or injury); and
  • Disorders of the blood vessels in the retina, such as diabetic retinopathy

With a macular pucker, you may notice that your central vision is blurry or mildly distorted, and straight lines can appear wavy. You may have difficulty seeing fine detail and reading small print. There may be a gray or cloudy area in the center of your vision, or perhaps even a blind spot.

Symptoms of macular pucker range from mild to severe. Usually macular pucker affects one eye, although it may affect the other eye later. Vision loss can vary from none to severe vision loss, although severe vision loss is uncommon. A macular pucker does not affect your side (peripheral) vision.

For most people with macular pucker, their vision remains stable and does not worsen over time.


During an eye exam, your ophthalmologist will dilate your pupils and examine your retina. After the exam macular OCT (Optical Cohorence Tomography) test will be needed. Also you may have a test called fluorescein angiography that uses dye to illuminate areas of the retina.


For mild symptoms of macular pucker, you may not need treatment. Updating your eyeglass prescription or wearing bifocals may improve vision. Eyedrops, medicines or laser surgery do not improve vision

For more severe symptoms, a surgery called vitrectomy is recommended. The surgery is usually performed in an operating room. During surgery, your ophthalmologist uses microsurgery instruments to remove the wrinkled tissue on your macula and to remove the vitreous gel that may be pulling on the macula. Sometimes an air or gas bubble is placed in the eye to help the retina heal or to seal any tears or holes.


Your ophthalmologist uses tiny instruments to remove the wrinkled tissue on the macula.

After the tissue is gone, the macula flattens and vision slowly improves, though it usually does not return all the way to normal. After the operation, you will need to wear an eye patch for a few days or weeks to protect the eye, and you may need to do some particular head positioning if an air or gas bubble was placed in your eye during surgery. You will also need to use medicated eye drops to help the eye heal.

In most cases, while vision improves after macular pucker surgery, it generally does not return to normal. It can take up to three months for vision to fully recover. On average, about half of the vision lost from a macular pucker is restored; some people have significantly more vision restored, some less. In most cases, the visual distortion of macular pucker is significantly reduced.

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