Updated on June 19, 2024

4 min read

What Are Collagen Punctal Plugs?

Mara Sugue
Dr. Melody Huang, O.D.
Written by Mara Sugue
Medically Reviewed by Dr. Melody Huang, O.D.

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Your eyes have tiny, built-in drains at the inner corners of your upper and lower lids. Those drains, called puncta, help excess tears flow away.

With dry eyes, sometimes we need to slow down the drainage to keep more of our natural tears in the eyes. This is where collagen plugs come in.

These plugs are extremely tiny and made of collagen, a natural substance in your body. They work like little stoppers for your puncta. 

How Do Collagen Punctal Plugs Work?

Collagen punctal plugs offer a solution for dry eye syndrome by acting as a temporary reservoir for tears. A trained eye care professional gently places the plug into the punctum. It’s typically a painless procedure, and people often report feeling nothing at all.

The plug acts like a stopper, partially or completely blocking the tear drainage pathway.  As a result, tears remain on the eye's surface for longer, providing much-needed moisture and lubrication.

The fascinating thing is that your body slowly breaks the collagen down, so the plugs dissolve on their own over a few days or weeks.

Why Should You Consider Collagen Plugs?

The temporary nature of collagen plugs allows you to evaluate if the treatment brings relief before opting for a longer-lasting solution. The insertion procedure is also typically quick and straightforward.

Collagen plugs eliminate the need for a removal procedure, as they naturally dissolve and are absorbed by the body over time. Since collagen is a natural protein in the body, these plugs have a low risk of adverse reactions, making them a safe option for many people.

Types and Efficacy of Punctal Plugs

Punctal plugs aren’t a one-size-fits-all solution. They vary depending on how long they work.  

All the types seem to help keep eyes more comfortable by holding onto your tears. The question is mainly which type is the right fit for you.

Here’s a breakdown of the different types of punctal plugs:

Type of Punctal PlugMaterialDurationBest ForDescription
Temporary or DissolvableCollagenA few days to several monthsTrial run for longer-lasting plugsAbsorbed by the body gradually; a temporary solution for dry eyes
Semi-PermanentSilicone or AcrylicYearsChronic dry eyesA long-term solution for dry eyes; not absorbed by the body
Permanent OcclusionN/APermanentSevere dry eye syndromePermanently closes the tear ducts

Are Collagen Punctal Plugs For You?

Plugs work best if your eyes don't make enough tears. If your tears just evaporate too quickly, other things might help more initially.

When choosing punctal plugs, your eye doctor might use a little tool to measure the size of those tear drain openings (the puncta). This helps them choose a plug that fits well.

For most people, collagen plugs are a great way to test whether plugs help. If collagen plugs work well, you can switch to silicone plugs that last years.

How to Put in the Punctal Plugs

Many people are worried about whether inserting the punctal plugs hurts. The good news is that it’s actually quick and simple. 

Most doctors use eyedrops to numb your eyes before placing the plugs. Sometimes, they’ll use a tiny tool to gently widen the punctum opening. Special tweezers or an applicator also help put the plug in the opening.

What Happens After Inserting Punctal Plugs?

Other people are concerned about what happens after the plugs are placed in their eyes. Some people feel the plugs only at first, and others don't notice the plugs at all.

If they bother you, let your doctor know, as sometimes the fit needs adjusting. It's pretty common for a plug to fall out, especially in the beginning. This doesn't mean they won't work⁠—you just might need to replace them.

Are Punctal Plugs Safe?

Punctal plugs are generally safe but watch for any signs of infection. These include redness, pain around the plug, and gunky discharge. Call your eye doctor right away if you're worried.

Remember that collagen punctal plugs are a tool to help manage dry eye symptoms, not a cure-all. A comprehensive approach involving regular checkups and addressing the root cause is vital for optimal eye health.

Even if the plugs are perfect, regular check-ups with your eye doctor are essential. While plugs provide relief, it's equally important to address the underlying cause of dry eye for long-term management.

6 sources cited

Updated on June 19, 2024

2.
Ervin et al. “Punctal occlusion for dry eye syndrome.” The Cochrane Database of Systematic Reviews, 2017.
3.
Boyd K. “Punctal Plugs.” American Academy of Ophthalmology, 2023.
4.
“Punctal Plugs.” Kellogg Eye Center, University of Michigan Health System.
6.
“Dry Eye.” National Eye Institute. 

About Our Contributors

Mara Sugue
Author

Mara Sugue, with a B.A. in Social Sciences, is a dedicated web content writer for Vision Center. She is committed to making eye health research accessible and understandable to people from diverse backgrounds and educational levels. Her writing aims to bridge the gap between complex vision health topics and readers' needs for clear, factual information.

Dr. Melody Huang, O.D.
Medical Reviewer

Dr. Melody Huang is an optometrist and freelance health writer with a passion for educating people about eye health. With her unique blend of clinical expertise and writing skills, Dr. Huang seeks to guide individuals towards healthier and happier lives. Her interests extend to Eastern medicine and integrative healthcare approaches. Outside of work, she enjoys exploring new skincare products, experimenting with food recipes, and spending time with her adopted cats.