When Straight Lines Look Wavy: What a Macular Pucker Is, and How It Differs From Macular Degeneration

Imagine standing on the lawn at Griffith Observatory, looking out at the downtown skyline, and covering one eye to rub it. Suddenly the edges of the buildings look bent. That kind of change, straight lines looking wavy in one eye, is worth an eye exam, and one possible cause is a macular pucker.

What a macular pucker is

The National Eye Institute (NEI) describes macular pucker as an eye condition that can make vision wavy or distorted. As we age, the vitreous, the clear gel that fills the eye, shrinks and pulls away from the retina. In some people a thin membrane then forms on the retina’s surface and creates wrinkles, or “puckers.” When that happens over the macula, the center of sharp vision, it is called a macular pucker.

Symptoms

• Straight lines, like a sentence in a book, look bent or wavy
• Letters or words look hard to read, missing or crowded
• Trouble seeing small details

NEI notes that a pucker usually affects one eye, symptoms are mild in most cases and often worsen slowly, and some people get used to the changes. In rare cases it can cause severe vision loss or lead to a macular hole.

Not the same as macular degeneration

NEI is explicit that macular pucker and age-related macular degeneration can have similar symptoms but are very different conditions. That is why any new distortion should be examined rather than guessed at.

Who is at risk

Risk goes up with age. NEI also lists floaters, a prior vitreous detachment, a retinal tear or detachment, eye injury, laser treatment or eye surgery, and uveitis.

How it is checked and treated

A pucker is found during a dilated eye exam, and an OCT scan can show how severe it is. NEI says most people have mild symptoms that do not need treatment, only regular exams and sometimes new glasses. If it makes reading or driving hard, a retina surgeon may recommend surgery to remove the membrane. Retina surgery is performed by retina specialists, and we refer patients who need it.

Readers in the Santa Barbara area can find local eye health articles on this Montecito eye care blog.

A quick self-check: cover one eye, then the other, and look at a door frame or a line of text. If one eye sees bends the other does not, book an exam.

Source: Macular Pucker (National Eye Institute (NIH)). This article is an educational summary written by Khanna Vision Institute and is not a substitute for medical advice.