Macular Pucker (Epiretinal Membrane): Symptoms, Diagnosis and Treatment
Quick answer: A macular pucker, or epiretinal membrane (ERM), is a thin layer of scar-like tissue that forms on the surface of the macula, the centre of the retina. It can cause blurred or distorted central vision, such as straight lines looking wavy. It is most often age-related, after the vitreous gel separates from the retina. Mild cases are monitored; if vision is significantly affected, a retina surgeon can remove the membrane with a vitrectomy and membrane peel.
Due an eye test? Book at Vision Concern Lazimpat, Boudha-Tushal or Makalbari (eye test NPR 400).
Related service: LASIK & cataract pre-assessment and referral at Vision Concern Lazimpat, Boudha-Tushal and Makalbari.
Causes
Most epiretinal membranes are linked to posterior vitreous detachment, a normal ageing change. Others follow retinal tears or detachment, eye inflammation, diabetic eye disease, retinal vein occlusion, eye injury or previous eye surgery.
Symptoms
- Blurred central vision in one eye.
- Distortion: straight lines or door frames look bent or wavy.
- Objects looking a different size in each eye.
- Many mild membranes cause no symptoms and are found on a routine retinal scan.
How it is diagnosed
An eye examination with a dilated retinal check shows the membrane, and an OCT scan gives a detailed cross-section of the macula, showing how thick the membrane is and whether the retina is pulled or swollen. An Amsler grid can help you notice changes at home.
Treatment
No eye drop or glasses remove the membrane. If symptoms are mild, monitoring is usual. If distortion or blur interferes with reading, driving or work, a retina surgeon may advise vitrectomy with membrane peel. Vision often improves gradually over months, and cataract can develop sooner after vitrectomy.
When to seek urgent care
A sudden shower of floaters, flashes of light, a curtain over vision or sudden central vision loss are not typical of a slowly forming membrane and need same-day assessment at an eye hospital.
How Vision Concern can help
Vision Concern is an eye-examination clinic and optical shop in Kathmandu with branches in Lazimpat, Boudha-Tushal and Makalbari. Its optometrists can examine your eyes, explain findings, update your glasses or contact lenses, and refer you to an eye specialist when medical or surgical care is needed.
Frequently asked questions
Can a macular pucker go away on its own?
Rarely; most stay stable or progress slowly, so they are monitored.
Is a macular pucker the same as macular degeneration?
No. A pucker is scar tissue on the retinal surface; macular degeneration is damage to the retinal cells and the layers beneath them.
Can new glasses fix the distortion?
Glasses can sharpen focus but cannot remove distortion caused by the membrane.
This guide is general education and does not replace an eye examination or advice from your treating doctor.
Yes. Many visitors, particularly from Bangladesh and West Bengal (Kolkata), come to Nepal for cataract, retina, or other eye surgery at a hospital and also want new glasses, a general eye exam, or contact lenses at the same time, before or after their procedure. Vision Concern is an optical and eye-examination clinic, not a surgical hospital, so we work alongside hospitals such as Tilganga: we are happy to see you for glasses, contact lenses, or a routine check-up either side of your surgical treatment elsewhere.
No conversion is needed. Eyeglass prescriptions from Germany, France, the UK, the USA, China, Russia, and almost every other country use the same international format, SPH (sphere), CYL (cylinder), and AXIS, measured in diopters. Our opticians read this directly, so you can bring your prescription paper, a photo of it on your phone, or simply your current glasses, and we will use the same values. If your prescription is more than a year or two old, we recommend a quick, free re-check before we make your new pair.
Yes. Above roughly 3,000 metres, UV exposure increases sharply because of the thinner atmosphere and reflection off snow, and ordinary sunglasses (category 2-3) do not block enough UV to prevent snow blindness (photokeratitis). We recommend glacier glasses or category-4 sunglasses with side shields, and can fit these with your own prescription if needed. Vision Concern offers ZEISS polarized, UV400-certified sunglasses with prescription lenses, which we can prepare before you set off on your trek.